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Theorem basellem9 24071
Description: Lemma for basel 24072. Since by basellem8 24070 
F is bounded by two expressions that tend to  pi ^ 2  / 
6,  F must also go to  pi ^ 2  /  6 by the squeeze theorem climsqz 13759. But the series  F is exactly the partial sums of 
k ^ -u 2, so it follows that this is also the value of the infinite sum  sum_ k  e.  NN ( k ^ -u 2
). (Contributed by Mario Carneiro, 28-Jul-2014.)
Hypotheses
Ref Expression
basel.g  |-  G  =  ( n  e.  NN  |->  ( 1  /  (
( 2  x.  n
)  +  1 ) ) )
basel.f  |-  F  =  seq 1 (  +  ,  ( n  e.  NN  |->  ( n ^ -u 2 ) ) )
basel.h  |-  H  =  ( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) )
basel.j  |-  J  =  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) )
basel.k  |-  K  =  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  G ) )
Assertion
Ref Expression
basellem9  |-  sum_ k  e.  NN  ( k ^ -u 2 )  =  ( ( pi ^ 2 )  /  6 )
Distinct variable groups:    k, n, F    k, G    k, H    k, J, n    k, K
Allowed substitution hints:    G( n)    H( n)    K( n)

Proof of Theorem basellem9
Dummy variables  x  y  z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 nnuz 11228 . . 3  |-  NN  =  ( ZZ>= `  1 )
2 1zzd 11002 . . 3  |-  ( T. 
->  1  e.  ZZ )
3 oveq1 6327 . . . . 5  |-  ( n  =  k  ->  (
n ^ -u 2
)  =  ( k ^ -u 2 ) )
4 eqid 2462 . . . . 5  |-  ( n  e.  NN  |->  ( n ^ -u 2 ) )  =  ( n  e.  NN  |->  ( n ^ -u 2 ) )
5 ovex 6348 . . . . 5  |-  ( k ^ -u 2 )  e.  _V
63, 4, 5fvmpt 5976 . . . 4  |-  ( k  e.  NN  ->  (
( n  e.  NN  |->  ( n ^ -u 2
) ) `  k
)  =  ( k ^ -u 2 ) )
76adantl 472 . . 3  |-  ( ( T.  /\  k  e.  NN )  ->  (
( n  e.  NN  |->  ( n ^ -u 2
) ) `  k
)  =  ( k ^ -u 2 ) )
8 nnre 10649 . . . . . . . . 9  |-  ( n  e.  NN  ->  n  e.  RR )
9 nnne0 10675 . . . . . . . . 9  |-  ( n  e.  NN  ->  n  =/=  0 )
10 2z 11003 . . . . . . . . . . 11  |-  2  e.  ZZ
11 znegcl 11006 . . . . . . . . . . 11  |-  ( 2  e.  ZZ  ->  -u 2  e.  ZZ )
1210, 11ax-mp 5 . . . . . . . . . 10  |-  -u 2  e.  ZZ
1312a1i 11 . . . . . . . . 9  |-  ( n  e.  NN  ->  -u 2  e.  ZZ )
148, 9, 13reexpclzd 12479 . . . . . . . 8  |-  ( n  e.  NN  ->  (
n ^ -u 2
)  e.  RR )
1514adantl 472 . . . . . . 7  |-  ( ( T.  /\  n  e.  NN )  ->  (
n ^ -u 2
)  e.  RR )
1615, 4fmptd 6074 . . . . . 6  |-  ( T. 
->  ( n  e.  NN  |->  ( n ^ -u 2
) ) : NN --> RR )
1716ffvelrnda 6050 . . . . 5  |-  ( ( T.  /\  k  e.  NN )  ->  (
( n  e.  NN  |->  ( n ^ -u 2
) ) `  k
)  e.  RR )
187, 17eqeltrrd 2541 . . . 4  |-  ( ( T.  /\  k  e.  NN )  ->  (
k ^ -u 2
)  e.  RR )
1918recnd 9700 . . 3  |-  ( ( T.  /\  k  e.  NN )  ->  (
k ^ -u 2
)  e.  CC )
201, 2, 17serfre 12280 . . . . . . . . . . 11  |-  ( T. 
->  seq 1 (  +  ,  ( n  e.  NN  |->  ( n ^ -u 2 ) ) ) : NN --> RR )
21 basel.f . . . . . . . . . . . 12  |-  F  =  seq 1 (  +  ,  ( n  e.  NN  |->  ( n ^ -u 2 ) ) )
2221feq1i 5746 . . . . . . . . . . 11  |-  ( F : NN --> RR  <->  seq 1
(  +  ,  ( n  e.  NN  |->  ( n ^ -u 2
) ) ) : NN --> RR )
2320, 22sylibr 217 . . . . . . . . . 10  |-  ( T. 
->  F : NN --> RR )
2423ffvelrnda 6050 . . . . . . . . 9  |-  ( ( T.  /\  n  e.  NN )  ->  ( F `  n )  e.  RR )
2524recnd 9700 . . . . . . . 8  |-  ( ( T.  /\  n  e.  NN )  ->  ( F `  n )  e.  CC )
26 remulcl 9655 . . . . . . . . . . . . 13  |-  ( ( x  e.  RR  /\  y  e.  RR )  ->  ( x  x.  y
)  e.  RR )
2726adantl 472 . . . . . . . . . . . 12  |-  ( ( T.  /\  ( x  e.  RR  /\  y  e.  RR ) )  -> 
( x  x.  y
)  e.  RR )
28 ovex 6348 . . . . . . . . . . . . . . . 16  |-  ( ( pi ^ 2 )  /  6 )  e. 
_V
2928fconst 5796 . . . . . . . . . . . . . . 15  |-  ( NN 
X.  { ( ( pi ^ 2 )  /  6 ) } ) : NN --> { ( ( pi ^ 2 )  /  6 ) }
30 pire 23469 . . . . . . . . . . . . . . . . . . 19  |-  pi  e.  RR
3130resqcli 12398 . . . . . . . . . . . . . . . . . 18  |-  ( pi
^ 2 )  e.  RR
32 6re 10723 . . . . . . . . . . . . . . . . . 18  |-  6  e.  RR
33 6nn 10805 . . . . . . . . . . . . . . . . . . 19  |-  6  e.  NN
3433nnne0i 10677 . . . . . . . . . . . . . . . . . 18  |-  6  =/=  0
3531, 32, 34redivcli 10407 . . . . . . . . . . . . . . . . 17  |-  ( ( pi ^ 2 )  /  6 )  e.  RR
3635a1i 11 . . . . . . . . . . . . . . . 16  |-  ( T. 
->  ( ( pi ^
2 )  /  6
)  e.  RR )
3736snssd 4130 . . . . . . . . . . . . . . 15  |-  ( T. 
->  { ( ( pi
^ 2 )  / 
6 ) }  C_  RR )
38 fss 5764 . . . . . . . . . . . . . . 15  |-  ( ( ( NN  X.  {
( ( pi ^
2 )  /  6
) } ) : NN --> { ( ( pi ^ 2 )  /  6 ) }  /\  { ( ( pi ^ 2 )  /  6 ) } 
C_  RR )  -> 
( NN  X.  {
( ( pi ^
2 )  /  6
) } ) : NN --> RR )
3929, 37, 38sylancr 674 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( NN  X.  {
( ( pi ^
2 )  /  6
) } ) : NN --> RR )
40 resubcl 9969 . . . . . . . . . . . . . . . 16  |-  ( ( x  e.  RR  /\  y  e.  RR )  ->  ( x  -  y
)  e.  RR )
4140adantl 472 . . . . . . . . . . . . . . 15  |-  ( ( T.  /\  ( x  e.  RR  /\  y  e.  RR ) )  -> 
( x  -  y
)  e.  RR )
42 1ex 9669 . . . . . . . . . . . . . . . . 17  |-  1  e.  _V
4342fconst 5796 . . . . . . . . . . . . . . . 16  |-  ( NN 
X.  { 1 } ) : NN --> { 1 }
44 1red 9689 . . . . . . . . . . . . . . . . 17  |-  ( T. 
->  1  e.  RR )
4544snssd 4130 . . . . . . . . . . . . . . . 16  |-  ( T. 
->  { 1 }  C_  RR )
46 fss 5764 . . . . . . . . . . . . . . . 16  |-  ( ( ( NN  X.  {
1 } ) : NN --> { 1 }  /\  { 1 } 
C_  RR )  -> 
( NN  X.  {
1 } ) : NN --> RR )
4743, 45, 46sylancr 674 . . . . . . . . . . . . . . 15  |-  ( T. 
->  ( NN  X.  {
1 } ) : NN --> RR )
48 2nn 10801 . . . . . . . . . . . . . . . . . . . 20  |-  2  e.  NN
4948a1i 11 . . . . . . . . . . . . . . . . . . 19  |-  ( T. 
->  2  e.  NN )
50 nnmulcl 10665 . . . . . . . . . . . . . . . . . . 19  |-  ( ( 2  e.  NN  /\  n  e.  NN )  ->  ( 2  x.  n
)  e.  NN )
5149, 50sylan 478 . . . . . . . . . . . . . . . . . 18  |-  ( ( T.  /\  n  e.  NN )  ->  (
2  x.  n )  e.  NN )
5251peano2nnd 10659 . . . . . . . . . . . . . . . . 17  |-  ( ( T.  /\  n  e.  NN )  ->  (
( 2  x.  n
)  +  1 )  e.  NN )
5352nnrecred 10688 . . . . . . . . . . . . . . . 16  |-  ( ( T.  /\  n  e.  NN )  ->  (
1  /  ( ( 2  x.  n )  +  1 ) )  e.  RR )
54 basel.g . . . . . . . . . . . . . . . 16  |-  G  =  ( n  e.  NN  |->  ( 1  /  (
( 2  x.  n
)  +  1 ) ) )
5553, 54fmptd 6074 . . . . . . . . . . . . . . 15  |-  ( T. 
->  G : NN --> RR )
56 nnex 10648 . . . . . . . . . . . . . . . 16  |-  NN  e.  _V
5756a1i 11 . . . . . . . . . . . . . . 15  |-  ( T. 
->  NN  e.  _V )
58 inidm 3653 . . . . . . . . . . . . . . 15  |-  ( NN 
i^i  NN )  =  NN
5941, 47, 55, 57, 57, 58off 6578 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  -  G
) : NN --> RR )
6027, 39, 59, 57, 57, 58off 6578 . . . . . . . . . . . . 13  |-  ( T. 
->  ( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) ) : NN --> RR )
61 basel.h . . . . . . . . . . . . . 14  |-  H  =  ( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) )
6261feq1i 5746 . . . . . . . . . . . . 13  |-  ( H : NN --> RR  <->  ( ( NN  X.  { ( ( pi ^ 2 )  /  6 ) } )  oF  x.  ( ( NN  X.  { 1 } )  oF  -  G
) ) : NN --> RR )
6360, 62sylibr 217 . . . . . . . . . . . 12  |-  ( T. 
->  H : NN --> RR )
64 readdcl 9653 . . . . . . . . . . . . . 14  |-  ( ( x  e.  RR  /\  y  e.  RR )  ->  ( x  +  y )  e.  RR )
6564adantl 472 . . . . . . . . . . . . 13  |-  ( ( T.  /\  ( x  e.  RR  /\  y  e.  RR ) )  -> 
( x  +  y )  e.  RR )
66 negex 9904 . . . . . . . . . . . . . . . 16  |-  -u 2  e.  _V
6766fconst 5796 . . . . . . . . . . . . . . 15  |-  ( NN 
X.  { -u 2 } ) : NN --> { -u 2 }
6812zrei 10977 . . . . . . . . . . . . . . . . 17  |-  -u 2  e.  RR
6968a1i 11 . . . . . . . . . . . . . . . 16  |-  ( T. 
->  -u 2  e.  RR )
7069snssd 4130 . . . . . . . . . . . . . . 15  |-  ( T. 
->  { -u 2 } 
C_  RR )
71 fss 5764 . . . . . . . . . . . . . . 15  |-  ( ( ( NN  X.  { -u 2 } ) : NN --> { -u 2 }  /\  { -u 2 }  C_  RR )  -> 
( NN  X.  { -u 2 } ) : NN --> RR )
7267, 70, 71sylancr 674 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( NN  X.  { -u 2 } ) : NN --> RR )
7327, 72, 55, 57, 57, 58off 6578 . . . . . . . . . . . . 13  |-  ( T. 
->  ( ( NN  X.  { -u 2 } )  oF  x.  G
) : NN --> RR )
7465, 47, 73, 57, 57, 58off 6578 . . . . . . . . . . . 12  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) : NN --> RR )
7527, 63, 74, 57, 57, 58off 6578 . . . . . . . . . . 11  |-  ( T. 
->  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) ) : NN --> RR )
76 basel.j . . . . . . . . . . . 12  |-  J  =  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) )
7776feq1i 5746 . . . . . . . . . . 11  |-  ( J : NN --> RR  <->  ( H  oF  x.  (
( NN  X.  {
1 } )  oF  +  ( ( NN  X.  { -u
2 } )  oF  x.  G ) ) ) : NN --> RR )
7875, 77sylibr 217 . . . . . . . . . 10  |-  ( T. 
->  J : NN --> RR )
7978ffvelrnda 6050 . . . . . . . . 9  |-  ( ( T.  /\  n  e.  NN )  ->  ( J `  n )  e.  RR )
8079recnd 9700 . . . . . . . 8  |-  ( ( T.  /\  n  e.  NN )  ->  ( J `  n )  e.  CC )
8125, 80npcand 10021 . . . . . . 7  |-  ( ( T.  /\  n  e.  NN )  ->  (
( ( F `  n )  -  ( J `  n )
)  +  ( J `
 n ) )  =  ( F `  n ) )
8281mpteq2dva 4505 . . . . . 6  |-  ( T. 
->  ( n  e.  NN  |->  ( ( ( F `
 n )  -  ( J `  n ) )  +  ( J `
 n ) ) )  =  ( n  e.  NN  |->  ( F `
 n ) ) )
83 ovex 6348 . . . . . . . 8  |-  ( ( F `  n )  -  ( J `  n ) )  e. 
_V
8483a1i 11 . . . . . . 7  |-  ( ( T.  /\  n  e.  NN )  ->  (
( F `  n
)  -  ( J `
 n ) )  e.  _V )
8523feqmptd 5945 . . . . . . . 8  |-  ( T. 
->  F  =  (
n  e.  NN  |->  ( F `  n ) ) )
8678feqmptd 5945 . . . . . . . 8  |-  ( T. 
->  J  =  (
n  e.  NN  |->  ( J `  n ) ) )
8757, 24, 79, 85, 86offval2 6580 . . . . . . 7  |-  ( T. 
->  ( F  oF  -  J )  =  ( n  e.  NN  |->  ( ( F `  n )  -  ( J `  n )
) ) )
8857, 84, 79, 87, 86offval2 6580 . . . . . 6  |-  ( T. 
->  ( ( F  oF  -  J )  oF  +  J
)  =  ( n  e.  NN  |->  ( ( ( F `  n
)  -  ( J `
 n ) )  +  ( J `  n ) ) ) )
8982, 88, 853eqtr4d 2506 . . . . 5  |-  ( T. 
->  ( ( F  oF  -  J )  oF  +  J
)  =  F )
9065, 47, 55, 57, 57, 58off 6578 . . . . . . . . . 10  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  +  G
) : NN --> RR )
91 recn 9660 . . . . . . . . . . . 12  |-  ( x  e.  RR  ->  x  e.  CC )
92 recn 9660 . . . . . . . . . . . 12  |-  ( y  e.  RR  ->  y  e.  CC )
93 recn 9660 . . . . . . . . . . . 12  |-  ( z  e.  RR  ->  z  e.  CC )
94 subdi 10085 . . . . . . . . . . . 12  |-  ( ( x  e.  CC  /\  y  e.  CC  /\  z  e.  CC )  ->  (
x  x.  ( y  -  z ) )  =  ( ( x  x.  y )  -  ( x  x.  z
) ) )
9591, 92, 93, 94syl3an 1318 . . . . . . . . . . 11  |-  ( ( x  e.  RR  /\  y  e.  RR  /\  z  e.  RR )  ->  (
x  x.  ( y  -  z ) )  =  ( ( x  x.  y )  -  ( x  x.  z
) ) )
9695adantl 472 . . . . . . . . . 10  |-  ( ( T.  /\  ( x  e.  RR  /\  y  e.  RR  /\  z  e.  RR ) )  -> 
( x  x.  (
y  -  z ) )  =  ( ( x  x.  y )  -  ( x  x.  z ) ) )
9757, 63, 90, 74, 96caofdi 6599 . . . . . . . . 9  |-  ( T. 
->  ( H  oF  x.  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) ) )  =  ( ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  G ) )  oF  -  ( H  oF  x.  (
( NN  X.  {
1 } )  oF  +  ( ( NN  X.  { -u
2 } )  oF  x.  G ) ) ) ) )
98 basel.k . . . . . . . . . 10  |-  K  =  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  G ) )
9998, 76oveq12i 6332 . . . . . . . . 9  |-  ( K  oF  -  J
)  =  ( ( H  oF  x.  ( ( NN  X.  { 1 } )  oF  +  G
) )  oF  -  ( H  oF  x.  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) ) )
10097, 99syl6eqr 2514 . . . . . . . 8  |-  ( T. 
->  ( H  oF  x.  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) ) )  =  ( K  oF  -  J ) )
10135recni 9686 . . . . . . . . . . . . . 14  |-  ( ( pi ^ 2 )  /  6 )  e.  CC
1021eqimss2i 3499 . . . . . . . . . . . . . . 15  |-  ( ZZ>= ` 
1 )  C_  NN
103102, 56climconst2 13667 . . . . . . . . . . . . . 14  |-  ( ( ( ( pi ^
2 )  /  6
)  e.  CC  /\  1  e.  ZZ )  ->  ( NN  X.  {
( ( pi ^
2 )  /  6
) } )  ~~>  ( ( pi ^ 2 )  /  6 ) )
104101, 2, 103sylancr 674 . . . . . . . . . . . . 13  |-  ( T. 
->  ( NN  X.  {
( ( pi ^
2 )  /  6
) } )  ~~>  ( ( pi ^ 2 )  /  6 ) )
105 ovex 6348 . . . . . . . . . . . . . 14  |-  ( ( NN  X.  { ( ( pi ^ 2 )  /  6 ) } )  oF  x.  ( ( NN 
X.  { 1 } )  oF  -  G ) )  e. 
_V
106105a1i 11 . . . . . . . . . . . . 13  |-  ( T. 
->  ( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) )  e.  _V )
107 ax-resscn 9627 . . . . . . . . . . . . . . . 16  |-  RR  C_  CC
108 fss 5764 . . . . . . . . . . . . . . . 16  |-  ( ( ( NN  X.  {
1 } ) : NN --> RR  /\  RR  C_  CC )  ->  ( NN  X.  { 1 } ) : NN --> CC )
10947, 107, 108sylancl 673 . . . . . . . . . . . . . . 15  |-  ( T. 
->  ( NN  X.  {
1 } ) : NN --> CC )
110 fss 5764 . . . . . . . . . . . . . . . 16  |-  ( ( G : NN --> RR  /\  RR  C_  CC )  ->  G : NN --> CC )
11155, 107, 110sylancl 673 . . . . . . . . . . . . . . 15  |-  ( T. 
->  G : NN --> CC )
112 ofnegsub 10640 . . . . . . . . . . . . . . 15  |-  ( ( NN  e.  _V  /\  ( NN  X.  { 1 } ) : NN --> CC  /\  G : NN --> CC )  ->  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 1 } )  oF  x.  G ) )  =  ( ( NN 
X.  { 1 } )  oF  -  G ) )
11357, 109, 111, 112syl3anc 1276 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 1 } )  oF  x.  G ) )  =  ( ( NN  X.  { 1 } )  oF  -  G ) )
114 neg1cn 10746 . . . . . . . . . . . . . . 15  |-  -u 1  e.  CC
11554, 114basellem7 24069 . . . . . . . . . . . . . 14  |-  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 1 } )  oF  x.  G ) )  ~~>  1
116113, 115syl6eqbrr 4457 . . . . . . . . . . . . 13  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  -  G
)  ~~>  1 )
11739ffvelrnda 6050 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( NN  X.  {
( ( pi ^
2 )  /  6
) } ) `  k )  e.  RR )
118117recnd 9700 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( NN  X.  {
( ( pi ^
2 )  /  6
) } ) `  k )  e.  CC )
11959ffvelrnda 6050 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  -  G
) `  k )  e.  RR )
120119recnd 9700 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  -  G
) `  k )  e.  CC )
121 ffn 5755 . . . . . . . . . . . . . . 15  |-  ( ( NN  X.  { ( ( pi ^ 2 )  /  6 ) } ) : NN --> RR  ->  ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  Fn  NN )
12239, 121syl 17 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( NN  X.  {
( ( pi ^
2 )  /  6
) } )  Fn  NN )
123 fnconstg 5798 . . . . . . . . . . . . . . . 16  |-  ( 1  e.  ZZ  ->  ( NN  X.  { 1 } )  Fn  NN )
1242, 123syl 17 . . . . . . . . . . . . . . 15  |-  ( T. 
->  ( NN  X.  {
1 } )  Fn  NN )
125 ffn 5755 . . . . . . . . . . . . . . . 16  |-  ( G : NN --> RR  ->  G  Fn  NN )
12655, 125syl 17 . . . . . . . . . . . . . . 15  |-  ( T. 
->  G  Fn  NN )
127124, 126, 57, 57, 58offn 6574 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  -  G
)  Fn  NN )
128 eqidd 2463 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( NN  X.  {
( ( pi ^
2 )  /  6
) } ) `  k )  =  ( ( NN  X.  {
( ( pi ^
2 )  /  6
) } ) `  k ) )
129 eqidd 2463 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  -  G
) `  k )  =  ( ( ( NN  X.  { 1 } )  oF  -  G ) `  k ) )
130122, 127, 57, 57, 58, 128, 129ofval 6572 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) ) `  k )  =  ( ( ( NN  X.  { ( ( pi ^ 2 )  /  6 ) } ) `  k
)  x.  ( ( ( NN  X.  {
1 } )  oF  -  G ) `
 k ) ) )
1311, 2, 104, 106, 116, 118, 120, 130climmul 13751 . . . . . . . . . . . 12  |-  ( T. 
->  ( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) )  ~~>  ( ( ( pi ^ 2 )  /  6 )  x.  1 ) )
132101mulid1i 9676 . . . . . . . . . . . 12  |-  ( ( ( pi ^ 2 )  /  6 )  x.  1 )  =  ( ( pi ^
2 )  /  6
)
133131, 132syl6breq 4458 . . . . . . . . . . 11  |-  ( T. 
->  ( ( NN  X.  { ( ( pi
^ 2 )  / 
6 ) } )  oF  x.  (
( NN  X.  {
1 } )  oF  -  G ) )  ~~>  ( ( pi
^ 2 )  / 
6 ) )
13461, 133syl5eqbr 4452 . . . . . . . . . 10  |-  ( T. 
->  H  ~~>  ( (
pi ^ 2 )  /  6 ) )
135 ovex 6348 . . . . . . . . . . 11  |-  ( H  oF  x.  (
( ( NN  X.  { 1 } )  oF  +  G
)  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) ) )  e. 
_V
136135a1i 11 . . . . . . . . . 10  |-  ( T. 
->  ( H  oF  x.  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) ) )  e.  _V )
137 3cn 10717 . . . . . . . . . . . . 13  |-  3  e.  CC
138102, 56climconst2 13667 . . . . . . . . . . . . 13  |-  ( ( 3  e.  CC  /\  1  e.  ZZ )  ->  ( NN  X.  {
3 } )  ~~>  3 )
139137, 2, 138sylancr 674 . . . . . . . . . . . 12  |-  ( T. 
->  ( NN  X.  {
3 } )  ~~>  3 )
140 ovex 6348 . . . . . . . . . . . . 13  |-  ( ( NN  X.  { 3 } )  oF  x.  G )  e. 
_V
141140a1i 11 . . . . . . . . . . . 12  |-  ( T. 
->  ( ( NN  X.  { 3 } )  oF  x.  G
)  e.  _V )
14254basellem6 24068 . . . . . . . . . . . . 13  |-  G  ~~>  0
143142a1i 11 . . . . . . . . . . . 12  |-  ( T. 
->  G  ~~>  0 )
144 3ex 10718 . . . . . . . . . . . . . . . 16  |-  3  e.  _V
145144fconst 5796 . . . . . . . . . . . . . . 15  |-  ( NN 
X.  { 3 } ) : NN --> { 3 }
146 3re 10716 . . . . . . . . . . . . . . . . 17  |-  3  e.  RR
147146a1i 11 . . . . . . . . . . . . . . . 16  |-  ( T. 
->  3  e.  RR )
148147snssd 4130 . . . . . . . . . . . . . . 15  |-  ( T. 
->  { 3 }  C_  RR )
149 fss 5764 . . . . . . . . . . . . . . 15  |-  ( ( ( NN  X.  {
3 } ) : NN --> { 3 }  /\  { 3 } 
C_  RR )  -> 
( NN  X.  {
3 } ) : NN --> RR )
150145, 148, 149sylancr 674 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( NN  X.  {
3 } ) : NN --> RR )
151150ffvelrnda 6050 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( NN  X.  {
3 } ) `  k )  e.  RR )
152151recnd 9700 . . . . . . . . . . . 12  |-  ( ( T.  /\  k  e.  NN )  ->  (
( NN  X.  {
3 } ) `  k )  e.  CC )
15355ffvelrnda 6050 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  ( G `  k )  e.  RR )
154153recnd 9700 . . . . . . . . . . . 12  |-  ( ( T.  /\  k  e.  NN )  ->  ( G `  k )  e.  CC )
155 ffn 5755 . . . . . . . . . . . . . 14  |-  ( ( NN  X.  { 3 } ) : NN --> RR  ->  ( NN  X.  { 3 } )  Fn  NN )
156150, 155syl 17 . . . . . . . . . . . . 13  |-  ( T. 
->  ( NN  X.  {
3 } )  Fn  NN )
157 eqidd 2463 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( NN  X.  {
3 } ) `  k )  =  ( ( NN  X.  {
3 } ) `  k ) )
158 eqidd 2463 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  ( G `  k )  =  ( G `  k ) )
159156, 126, 57, 57, 58, 157, 158ofval 6572 . . . . . . . . . . . 12  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 3 } )  oF  x.  G
) `  k )  =  ( ( ( NN  X.  { 3 } ) `  k
)  x.  ( G `
 k ) ) )
1601, 2, 139, 141, 143, 152, 154, 159climmul 13751 . . . . . . . . . . 11  |-  ( T. 
->  ( ( NN  X.  { 3 } )  oF  x.  G
)  ~~>  ( 3  x.  0 ) )
161137mul01i 9854 . . . . . . . . . . 11  |-  ( 3  x.  0 )  =  0
162160, 161syl6breq 4458 . . . . . . . . . 10  |-  ( T. 
->  ( ( NN  X.  { 3 } )  oF  x.  G
)  ~~>  0 )
16363ffvelrnda 6050 . . . . . . . . . . 11  |-  ( ( T.  /\  k  e.  NN )  ->  ( H `  k )  e.  RR )
164163recnd 9700 . . . . . . . . . 10  |-  ( ( T.  /\  k  e.  NN )  ->  ( H `  k )  e.  CC )
16527, 150, 55, 57, 57, 58off 6578 . . . . . . . . . . . 12  |-  ( T. 
->  ( ( NN  X.  { 3 } )  oF  x.  G
) : NN --> RR )
166165ffvelrnda 6050 . . . . . . . . . . 11  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 3 } )  oF  x.  G
) `  k )  e.  RR )
167166recnd 9700 . . . . . . . . . 10  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 3 } )  oF  x.  G
) `  k )  e.  CC )
168 ffn 5755 . . . . . . . . . . . 12  |-  ( H : NN --> RR  ->  H  Fn  NN )
16963, 168syl 17 . . . . . . . . . . 11  |-  ( T. 
->  H  Fn  NN )
17041, 90, 74, 57, 57, 58off 6578 . . . . . . . . . . . 12  |-  ( T. 
->  ( ( ( NN 
X.  { 1 } )  oF  +  G )  oF  -  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) ) : NN --> RR )
171 ffn 5755 . . . . . . . . . . . 12  |-  ( ( ( ( NN  X.  { 1 } )  oF  +  G
)  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) ) : NN --> RR  ->  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) )  Fn  NN )
172170, 171syl 17 . . . . . . . . . . 11  |-  ( T. 
->  ( ( ( NN 
X.  { 1 } )  oF  +  G )  oF  -  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) )  Fn  NN )
173 eqidd 2463 . . . . . . . . . . 11  |-  ( ( T.  /\  k  e.  NN )  ->  ( H `  k )  =  ( H `  k ) )
174154mulid2d 9692 . . . . . . . . . . . . . . 15  |-  ( ( T.  /\  k  e.  NN )  ->  (
1  x.  ( G `
 k ) )  =  ( G `  k ) )
175 2cn 10713 . . . . . . . . . . . . . . . . . 18  |-  2  e.  CC
176 mulneg1 10088 . . . . . . . . . . . . . . . . . 18  |-  ( ( 2  e.  CC  /\  ( G `  k )  e.  CC )  -> 
( -u 2  x.  ( G `  k )
)  =  -u (
2  x.  ( G `
 k ) ) )
177175, 154, 176sylancr 674 . . . . . . . . . . . . . . . . 17  |-  ( ( T.  /\  k  e.  NN )  ->  ( -u 2  x.  ( G `
 k ) )  =  -u ( 2  x.  ( G `  k
) ) )
178177negeqd 9900 . . . . . . . . . . . . . . . 16  |-  ( ( T.  /\  k  e.  NN )  ->  -u ( -u 2  x.  ( G `
 k ) )  =  -u -u ( 2  x.  ( G `  k
) ) )
179 mulcl 9654 . . . . . . . . . . . . . . . . . 18  |-  ( ( 2  e.  CC  /\  ( G `  k )  e.  CC )  -> 
( 2  x.  ( G `  k )
)  e.  CC )
180175, 154, 179sylancr 674 . . . . . . . . . . . . . . . . 17  |-  ( ( T.  /\  k  e.  NN )  ->  (
2  x.  ( G `
 k ) )  e.  CC )
181180negnegd 10008 . . . . . . . . . . . . . . . 16  |-  ( ( T.  /\  k  e.  NN )  ->  -u -u (
2  x.  ( G `
 k ) )  =  ( 2  x.  ( G `  k
) ) )
182178, 181eqtr2d 2497 . . . . . . . . . . . . . . 15  |-  ( ( T.  /\  k  e.  NN )  ->  (
2  x.  ( G `
 k ) )  =  -u ( -u 2  x.  ( G `  k
) ) )
183174, 182oveq12d 6338 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( 1  x.  ( G `  k )
)  +  ( 2  x.  ( G `  k ) ) )  =  ( ( G `
 k )  + 
-u ( -u 2  x.  ( G `  k
) ) ) )
184 remulcl 9655 . . . . . . . . . . . . . . . . 17  |-  ( (
-u 2  e.  RR  /\  ( G `  k
)  e.  RR )  ->  ( -u 2  x.  ( G `  k
) )  e.  RR )
18568, 153, 184sylancr 674 . . . . . . . . . . . . . . . 16  |-  ( ( T.  /\  k  e.  NN )  ->  ( -u 2  x.  ( G `
 k ) )  e.  RR )
186185recnd 9700 . . . . . . . . . . . . . . 15  |-  ( ( T.  /\  k  e.  NN )  ->  ( -u 2  x.  ( G `
 k ) )  e.  CC )
187154, 186negsubd 10023 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( G `  k
)  +  -u ( -u 2  x.  ( G `
 k ) ) )  =  ( ( G `  k )  -  ( -u 2  x.  ( G `  k
) ) ) )
188183, 187eqtrd 2496 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( 1  x.  ( G `  k )
)  +  ( 2  x.  ( G `  k ) ) )  =  ( ( G `
 k )  -  ( -u 2  x.  ( G `  k )
) ) )
189 df-3 10702 . . . . . . . . . . . . . . . 16  |-  3  =  ( 2  +  1 )
190 ax-1cn 9628 . . . . . . . . . . . . . . . . 17  |-  1  e.  CC
191175, 190addcomi 9855 . . . . . . . . . . . . . . . 16  |-  ( 2  +  1 )  =  ( 1  +  2 )
192189, 191eqtri 2484 . . . . . . . . . . . . . . 15  |-  3  =  ( 1  +  2 )
193192oveq1i 6330 . . . . . . . . . . . . . 14  |-  ( 3  x.  ( G `  k ) )  =  ( ( 1  +  2 )  x.  ( G `  k )
)
194 1cnd 9690 . . . . . . . . . . . . . . 15  |-  ( ( T.  /\  k  e.  NN )  ->  1  e.  CC )
195175a1i 11 . . . . . . . . . . . . . . 15  |-  ( ( T.  /\  k  e.  NN )  ->  2  e.  CC )
196194, 195, 154adddird 9699 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( 1  +  2 )  x.  ( G `
 k ) )  =  ( ( 1  x.  ( G `  k ) )  +  ( 2  x.  ( G `  k )
) ) )
197193, 196syl5eq 2508 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
3  x.  ( G `
 k ) )  =  ( ( 1  x.  ( G `  k ) )  +  ( 2  x.  ( G `  k )
) ) )
198194, 154, 186pnpcand 10054 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( 1  +  ( G `  k ) )  -  ( 1  +  ( -u 2  x.  ( G `  k
) ) ) )  =  ( ( G `
 k )  -  ( -u 2  x.  ( G `  k )
) ) )
199188, 197, 1983eqtr4rd 2507 . . . . . . . . . . . 12  |-  ( ( T.  /\  k  e.  NN )  ->  (
( 1  +  ( G `  k ) )  -  ( 1  +  ( -u 2  x.  ( G `  k
) ) ) )  =  ( 3  x.  ( G `  k
) ) )
200124, 126, 57, 57, 58offn 6574 . . . . . . . . . . . . 13  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  +  G
)  Fn  NN )
20112a1i 11 . . . . . . . . . . . . . . . 16  |-  ( T. 
->  -u 2  e.  ZZ )
202 fnconstg 5798 . . . . . . . . . . . . . . . 16  |-  ( -u
2  e.  ZZ  ->  ( NN  X.  { -u
2 } )  Fn  NN )
203201, 202syl 17 . . . . . . . . . . . . . . 15  |-  ( T. 
->  ( NN  X.  { -u 2 } )  Fn  NN )
204203, 126, 57, 57, 58offn 6574 . . . . . . . . . . . . . 14  |-  ( T. 
->  ( ( NN  X.  { -u 2 } )  oF  x.  G
)  Fn  NN )
205124, 204, 57, 57, 58offn 6574 . . . . . . . . . . . . 13  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) )  Fn  NN )
20657, 44, 126, 158ofc1 6586 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  +  G
) `  k )  =  ( 1  +  ( G `  k
) ) )
20757, 69, 126, 158ofc1 6586 . . . . . . . . . . . . . 14  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { -u 2 } )  oF  x.  G
) `  k )  =  ( -u 2  x.  ( G `  k
) ) )
20857, 44, 204, 207ofc1 6586 . . . . . . . . . . . . 13  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) `  k )  =  ( 1  +  ( -u 2  x.  ( G `  k
) ) ) )
209200, 205, 57, 57, 58, 206, 208ofval 6572 . . . . . . . . . . . 12  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( ( NN 
X.  { 1 } )  oF  +  G )  oF  -  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) ) `  k )  =  ( ( 1  +  ( G `  k ) )  -  ( 1  +  ( -u 2  x.  ( G `  k
) ) ) ) )
21057, 147, 126, 158ofc1 6586 . . . . . . . . . . . 12  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 3 } )  oF  x.  G
) `  k )  =  ( 3  x.  ( G `  k
) ) )
211199, 209, 2103eqtr4d 2506 . . . . . . . . . . 11  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( ( NN 
X.  { 1 } )  oF  +  G )  oF  -  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) ) `  k )  =  ( ( ( NN  X.  { 3 } )  oF  x.  G
) `  k )
)
212169, 172, 57, 57, 58, 173, 211ofval 6572 . . . . . . . . . 10  |-  ( ( T.  /\  k  e.  NN )  ->  (
( H  oF  x.  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) ) ) `  k
)  =  ( ( H `  k )  x.  ( ( ( NN  X.  { 3 } )  oF  x.  G ) `  k ) ) )
2131, 2, 134, 136, 162, 164, 167, 212climmul 13751 . . . . . . . . 9  |-  ( T. 
->  ( H  oF  x.  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) ) )  ~~>  ( ( ( pi ^ 2 )  /  6 )  x.  0 ) )
214101mul01i 9854 . . . . . . . . 9  |-  ( ( ( pi ^ 2 )  /  6 )  x.  0 )  =  0
215213, 214syl6breq 4458 . . . . . . . 8  |-  ( T. 
->  ( H  oF  x.  ( ( ( NN  X.  { 1 } )  oF  +  G )  oF  -  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) ) )  ~~>  0 )
216100, 215eqbrtrrd 4441 . . . . . . 7  |-  ( T. 
->  ( K  oF  -  J )  ~~>  0 )
217 ovex 6348 . . . . . . . 8  |-  ( F  oF  -  J
)  e.  _V
218217a1i 11 . . . . . . 7  |-  ( T. 
->  ( F  oF  -  J )  e. 
_V )
21927, 63, 90, 57, 57, 58off 6578 . . . . . . . . . 10  |-  ( T. 
->  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  G ) ) : NN --> RR )
22098feq1i 5746 . . . . . . . . . 10  |-  ( K : NN --> RR  <->  ( H  oF  x.  (
( NN  X.  {
1 } )  oF  +  G ) ) : NN --> RR )
221219, 220sylibr 217 . . . . . . . . 9  |-  ( T. 
->  K : NN --> RR )
22241, 221, 78, 57, 57, 58off 6578 . . . . . . . 8  |-  ( T. 
->  ( K  oF  -  J ) : NN --> RR )
223222ffvelrnda 6050 . . . . . . 7  |-  ( ( T.  /\  k  e.  NN )  ->  (
( K  oF  -  J ) `  k )  e.  RR )
22441, 23, 78, 57, 57, 58off 6578 . . . . . . . 8  |-  ( T. 
->  ( F  oF  -  J ) : NN --> RR )
225224ffvelrnda 6050 . . . . . . 7  |-  ( ( T.  /\  k  e.  NN )  ->  (
( F  oF  -  J ) `  k )  e.  RR )
22623ffvelrnda 6050 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( F `  k )  e.  RR )
227221ffvelrnda 6050 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( K `  k )  e.  RR )
22878ffvelrnda 6050 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( J `  k )  e.  RR )
229 eqid 2462 . . . . . . . . . . . 12  |-  ( ( 2  x.  k )  +  1 )  =  ( ( 2  x.  k )  +  1 )
23054, 21, 61, 76, 98, 229basellem8 24070 . . . . . . . . . . 11  |-  ( k  e.  NN  ->  (
( J `  k
)  <_  ( F `  k )  /\  ( F `  k )  <_  ( K `  k
) ) )
231230adantl 472 . . . . . . . . . 10  |-  ( ( T.  /\  k  e.  NN )  ->  (
( J `  k
)  <_  ( F `  k )  /\  ( F `  k )  <_  ( K `  k
) ) )
232231simprd 469 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( F `  k )  <_  ( K `  k
) )
233226, 227, 228, 232lesub1dd 10262 . . . . . . . 8  |-  ( ( T.  /\  k  e.  NN )  ->  (
( F `  k
)  -  ( J `
 k ) )  <_  ( ( K `
 k )  -  ( J `  k ) ) )
234 ffn 5755 . . . . . . . . . 10  |-  ( F : NN --> RR  ->  F  Fn  NN )
23523, 234syl 17 . . . . . . . . 9  |-  ( T. 
->  F  Fn  NN )
236 ffn 5755 . . . . . . . . . 10  |-  ( J : NN --> RR  ->  J  Fn  NN )
23778, 236syl 17 . . . . . . . . 9  |-  ( T. 
->  J  Fn  NN )
238 eqidd 2463 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( F `  k )  =  ( F `  k ) )
239 eqidd 2463 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( J `  k )  =  ( J `  k ) )
240235, 237, 57, 57, 58, 238, 239ofval 6572 . . . . . . . 8  |-  ( ( T.  /\  k  e.  NN )  ->  (
( F  oF  -  J ) `  k )  =  ( ( F `  k
)  -  ( J `
 k ) ) )
241 ffn 5755 . . . . . . . . . 10  |-  ( K : NN --> RR  ->  K  Fn  NN )
242221, 241syl 17 . . . . . . . . 9  |-  ( T. 
->  K  Fn  NN )
243 eqidd 2463 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( K `  k )  =  ( K `  k ) )
244242, 237, 57, 57, 58, 243, 239ofval 6572 . . . . . . . 8  |-  ( ( T.  /\  k  e.  NN )  ->  (
( K  oF  -  J ) `  k )  =  ( ( K `  k
)  -  ( J `
 k ) ) )
245233, 240, 2443brtr4d 4449 . . . . . . 7  |-  ( ( T.  /\  k  e.  NN )  ->  (
( F  oF  -  J ) `  k )  <_  (
( K  oF  -  J ) `  k ) )
246231simpld 465 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  ( J `  k )  <_  ( F `  k
) )
247226, 228subge0d 10236 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  (
0  <_  ( ( F `  k )  -  ( J `  k ) )  <->  ( J `  k )  <_  ( F `  k )
) )
248246, 247mpbird 240 . . . . . . . 8  |-  ( ( T.  /\  k  e.  NN )  ->  0  <_  ( ( F `  k )  -  ( J `  k )
) )
249248, 240breqtrrd 4445 . . . . . . 7  |-  ( ( T.  /\  k  e.  NN )  ->  0  <_  ( ( F  oF  -  J ) `  k ) )
2501, 2, 216, 218, 223, 225, 245, 249climsqz2 13760 . . . . . 6  |-  ( T. 
->  ( F  oF  -  J )  ~~>  0 )
251 ovex 6348 . . . . . . 7  |-  ( ( F  oF  -  J )  oF  +  J )  e. 
_V
252251a1i 11 . . . . . 6  |-  ( T. 
->  ( ( F  oF  -  J )  oF  +  J
)  e.  _V )
253 ovex 6348 . . . . . . . . . 10  |-  ( H  oF  x.  (
( NN  X.  {
1 } )  oF  +  ( ( NN  X.  { -u
2 } )  oF  x.  G ) ) )  e.  _V
254253a1i 11 . . . . . . . . 9  |-  ( T. 
->  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) )  e. 
_V )
25568recni 9686 . . . . . . . . . . 11  |-  -u 2  e.  CC
25654, 255basellem7 24069 . . . . . . . . . 10  |-  ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) )  ~~>  1
257256a1i 11 . . . . . . . . 9  |-  ( T. 
->  ( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) )  ~~>  1 )
25874ffvelrnda 6050 . . . . . . . . . 10  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) `  k )  e.  RR )
259258recnd 9700 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) `  k )  e.  CC )
260 eqidd 2463 . . . . . . . . . 10  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( NN  X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G ) ) `  k )  =  ( ( ( NN  X.  { 1 } )  oF  +  ( ( NN 
X.  { -u 2 } )  oF  x.  G ) ) `
 k ) )
261169, 205, 57, 57, 58, 173, 260ofval 6572 . . . . . . . . 9  |-  ( ( T.  /\  k  e.  NN )  ->  (
( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) ) `  k )  =  ( ( H `  k
)  x.  ( ( ( NN  X.  {
1 } )  oF  +  ( ( NN  X.  { -u
2 } )  oF  x.  G ) ) `  k ) ) )
2621, 2, 134, 254, 257, 164, 259, 261climmul 13751 . . . . . . . 8  |-  ( T. 
->  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) )  ~~>  ( ( ( pi ^ 2 )  /  6 )  x.  1 ) )
263262, 132syl6breq 4458 . . . . . . 7  |-  ( T. 
->  ( H  oF  x.  ( ( NN 
X.  { 1 } )  oF  +  ( ( NN  X.  { -u 2 } )  oF  x.  G
) ) )  ~~>  ( ( pi ^ 2 )  /  6 ) )
26476, 263syl5eqbr 4452 . . . . . 6  |-  ( T. 
->  J  ~~>  ( (
pi ^ 2 )  /  6 ) )
265225recnd 9700 . . . . . 6  |-  ( ( T.  /\  k  e.  NN )  ->  (
( F  oF  -  J ) `  k )  e.  CC )
266228recnd 9700 . . . . . 6  |-  ( ( T.  /\  k  e.  NN )  ->  ( J `  k )  e.  CC )
267 ffn 5755 . . . . . . . 8  |-  ( ( F  oF  -  J ) : NN --> RR  ->  ( F  oF  -  J )  Fn  NN )
268224, 267syl 17 . . . . . . 7  |-  ( T. 
->  ( F  oF  -  J )  Fn  NN )
269 eqidd 2463 . . . . . . 7  |-  ( ( T.  /\  k  e.  NN )  ->  (
( F  oF  -  J ) `  k )  =  ( ( F  oF  -  J ) `  k ) )
270268, 237, 57, 57, 58, 269, 239ofval 6572 . . . . . 6  |-  ( ( T.  /\  k  e.  NN )  ->  (
( ( F  oF  -  J )  oF  +  J
) `  k )  =  ( ( ( F  oF  -  J ) `  k
)  +  ( J `
 k ) ) )
2711, 2, 250, 252, 264, 265, 266, 270climadd 13750 . . . . 5  |-  ( T. 
->  ( ( F  oF  -  J )  oF  +  J
)  ~~>  ( 0  +  ( ( pi ^
2 )  /  6
) ) )
27289, 271eqbrtrrd 4441 . . . 4  |-  ( T. 
->  F  ~~>  ( 0  +  ( ( pi
^ 2 )  / 
6 ) ) )
273101addid2i 9852 . . . 4  |-  ( 0  +  ( ( pi
^ 2 )  / 
6 ) )  =  ( ( pi ^
2 )  /  6
)
274272, 21, 2733brtr3g 4450 . . 3  |-  ( T. 
->  seq 1 (  +  ,  ( n  e.  NN  |->  ( n ^ -u 2 ) ) )  ~~>  ( ( pi ^
2 )  /  6
) )
2751, 2, 7, 19, 274isumclim 13873 . 2  |-  ( T. 
->  sum_ k  e.  NN  ( k ^ -u 2
)  =  ( ( pi ^ 2 )  /  6 ) )
276275trud 1464 1  |-  sum_ k  e.  NN  ( k ^ -u 2 )  =  ( ( pi ^ 2 )  /  6 )
Colors of variables: wff setvar class
Syntax hints:    /\ wa 375    /\ w3a 991    = wceq 1455   T. wtru 1456    e. wcel 1898   _Vcvv 3057    C_ wss 3416   {csn 3980   class class class wbr 4418    |-> cmpt 4477    X. cxp 4854    Fn wfn 5600   -->wf 5601   ` cfv 5605  (class class class)co 6320    oFcof 6561   CCcc 9568   RRcr 9569   0cc0 9570   1c1 9571    + caddc 9573    x. cmul 9575    <_ cle 9707    - cmin 9891   -ucneg 9892    / cdiv 10302   NNcn 10642   2c2 10692   3c3 10693   6c6 10696   ZZcz 10971   ZZ>=cuz 11193    seqcseq 12251   ^cexp 12310    ~~> cli 13603   sum_csu 13807   picpi 14174
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1680  ax-4 1693  ax-5 1769  ax-6 1816  ax-7 1862  ax-8 1900  ax-9 1907  ax-10 1926  ax-11 1931  ax-12 1944  ax-13 2102  ax-ext 2442  ax-rep 4531  ax-sep 4541  ax-nul 4550  ax-pow 4598  ax-pr 4656  ax-un 6615  ax-inf2 8177  ax-cnex 9626  ax-resscn 9627  ax-1cn 9628  ax-icn 9629  ax-addcl 9630  ax-addrcl 9631  ax-mulcl 9632  ax-mulrcl 9633  ax-mulcom 9634  ax-addass 9635  ax-mulass 9636  ax-distr 9637  ax-i2m1 9638  ax-1ne0 9639  ax-1rid 9640  ax-rnegex 9641  ax-rrecex 9642  ax-cnre 9643  ax-pre-lttri 9644  ax-pre-lttrn 9645  ax-pre-ltadd 9646  ax-pre-mulgt0 9647  ax-pre-sup 9648  ax-addf 9649  ax-mulf 9650
This theorem depends on definitions:  df-bi 190  df-or 376  df-an 377  df-3or 992  df-3an 993  df-tru 1458  df-fal 1461  df-ex 1675  df-nf 1679  df-sb 1809  df-eu 2314  df-mo 2315  df-clab 2449  df-cleq 2455  df-clel 2458  df-nfc 2592  df-ne 2635  df-nel 2636  df-ral 2754  df-rex 2755  df-reu 2756  df-rmo 2757  df-rab 2758  df-v 3059  df-sbc 3280  df-csb 3376  df-dif 3419  df-un 3421  df-in 3423  df-ss 3430  df-pss 3432  df-nul 3744  df-if 3894  df-pw 3965  df-sn 3981  df-pr 3983  df-tp 3985  df-op 3987  df-uni 4213  df-int 4249  df-iun 4294  df-iin 4295  df-br 4419  df-opab 4478  df-mpt 4479  df-tr 4514  df-eprel 4767  df-id 4771  df-po 4777  df-so 4778  df-fr 4815  df-se 4816  df-we 4817  df-xp 4862  df-rel 4863  df-cnv 4864  df-co 4865  df-dm 4866  df-rn 4867  df-res 4868  df-ima 4869  df-pred 5403  df-ord 5449  df-on 5450  df-lim 5451  df-suc 5452  df-iota 5569  df-fun 5607  df-fn 5608  df-f 5609  df-f1 5610  df-fo 5611  df-f1o 5612  df-fv 5613  df-isom 5614  df-riota 6282  df-ov 6323  df-oprab 6324  df-mpt2 6325  df-of 6563  df-om 6725  df-1st 6825  df-2nd 6826  df-supp 6947  df-wrecs 7059  df-recs 7121  df-rdg 7159  df-1o 7213  df-2o 7214  df-oadd 7217  df-er 7394  df-map 7505  df-pm 7506  df-ixp 7554  df-en 7601  df-dom 7602  df-sdom 7603  df-fin 7604  df-fsupp 7915  df-fi 7956  df-sup 7987  df-inf 7988  df-oi 8056  df-card 8404  df-cda 8629  df-pnf 9708  df-mnf 9709  df-xr 9710  df-ltxr 9711  df-le 9712  df-sub 9893  df-neg 9894  df-div 10303  df-nn 10643  df-2 10701  df-3 10702  df-4 10703  df-5 10704  df-6 10705  df-7 10706  df-8 10707  df-9 10708  df-10 10709  df-n0 10904  df-z 10972  df-dec 11086  df-uz 11194  df-q 11299  df-rp 11337  df-xneg 11443  df-xadd 11444  df-xmul 11445  df-ioo 11673  df-ioc 11674  df-ico 11675  df-icc 11676  df-fz 11820  df-fzo 11953  df-fl 12066  df-mod 12135  df-seq 12252  df-exp 12311  df-fac 12498  df-bc 12526  df-hash 12554  df-shft 13185  df-cj 13217  df-re 13218  df-im 13219  df-sqrt 13353  df-abs 13354  df-limsup 13581  df-clim 13607  df-rlim 13608  df-sum 13808  df-ef 14176  df-sin 14178  df-cos 14179  df-tan 14180  df-pi 14181  df-struct 15178  df-ndx 15179  df-slot 15180  df-base 15181  df-sets 15182  df-ress 15183  df-plusg 15258  df-mulr 15259  df-starv 15260  df-sca 15261  df-vsca 15262  df-ip 15263  df-tset 15264  df-ple 15265  df-ds 15267  df-unif 15268  df-hom 15269  df-cco 15270  df-rest 15376  df-topn 15377  df-0g 15395  df-gsum 15396  df-topgen 15397  df-pt 15398  df-prds 15401  df-xrs 15455  df-qtop 15461  df-imas 15462  df-xps 15465  df-mre 15547  df-mrc 15548  df-acs 15550  df-mgm 16543  df-sgrp 16582  df-mnd 16592  df-submnd 16638  df-mulg 16731  df-cntz 17026  df-cmn 17487  df-psmet 19017  df-xmet 19018  df-met 19019  df-bl 19020  df-mopn 19021  df-fbas 19022  df-fg 19023  df-cnfld 19026  df-top 19976  df-bases 19977  df-topon 19978  df-topsp 19979  df-cld 20089  df-ntr 20090  df-cls 20091  df-nei 20169  df-lp 20207  df-perf 20208  df-cn 20298  df-cnp 20299  df-haus 20386  df-tx 20632  df-hmeo 20825  df-fil 20916  df-fm 21008  df-flim 21009  df-flf 21010  df-xms 21390  df-ms 21391  df-tms 21392  df-cncf 21965  df-0p 22684  df-limc 22877  df-dv 22878  df-ply 23198  df-idp 23199  df-coe 23200  df-dgr 23201  df-quot 23300
This theorem is referenced by:  basel  24072
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