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Theorem bpolylem 29994
Description: Lemma for bpolyval 29995. (Contributed by Scott Fenton, 22-May-2014.) (Revised by Mario Carneiro, 23-Aug-2014.)
Hypotheses
Ref Expression
bpoly.1  |-  G  =  ( g  e.  _V  |->  [_ ( # `  dom  g )  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )
bpoly.2  |-  F  = wrecs (  <  ,  NN0 ,  G )
Assertion
Ref Expression
bpolylem  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( N BernPoly  X )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( k BernPoly  X )  /  (
( N  -  k
)  +  1 ) ) ) ) )
Distinct variable groups:    g, k, n, F    g, N, k, n    g, X, k, n
Allowed substitution hints:    G( g, k, n)

Proof of Theorem bpolylem
Dummy variables  m  x are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 oveq1 6303 . . . . . . . . . . 11  |-  ( x  =  X  ->  (
x ^ n )  =  ( X ^
n ) )
21oveq1d 6311 . . . . . . . . . 10  |-  ( x  =  X  ->  (
( x ^ n
)  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `
 k )  / 
( ( n  -  k )  +  1 ) ) ) )  =  ( ( X ^ n )  -  sum_ k  e.  dom  g
( ( n  _C  k )  x.  (
( g `  k
)  /  ( ( n  -  k )  +  1 ) ) ) ) )
32csbeq2dv 3843 . . . . . . . . 9  |-  ( x  =  X  ->  [_ ( # `
 dom  g )  /  n ]_ ( ( x ^ n )  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `  k )  /  (
( n  -  k
)  +  1 ) ) ) )  = 
[_ ( # `  dom  g )  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )
43mpteq2dv 4544 . . . . . . . 8  |-  ( x  =  X  ->  (
g  e.  _V  |->  [_ ( # `  dom  g
)  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )  =  ( g  e.  _V  |->  [_ ( # `  dom  g
)  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) ) )
5 bpoly.1 . . . . . . . 8  |-  G  =  ( g  e.  _V  |->  [_ ( # `  dom  g )  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )
64, 5syl6eqr 2516 . . . . . . 7  |-  ( x  =  X  ->  (
g  e.  _V  |->  [_ ( # `  dom  g
)  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )  =  G )
7 wrecseq3 29537 . . . . . . 7  |-  ( ( g  e.  _V  |->  [_ ( # `  dom  g
)  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )  =  G  -> wrecs (  <  ,  NN0 ,  ( g  e.  _V  |->  [_ ( # `  dom  g )  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) ) )  = wrecs (  <  ,  NN0 ,  G ) )
86, 7syl 16 . . . . . 6  |-  ( x  =  X  -> wrecs (  <  ,  NN0 ,  ( g  e.  _V  |->  [_ ( # `
 dom  g )  /  n ]_ ( ( x ^ n )  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `  k )  /  (
( n  -  k
)  +  1 ) ) ) ) ) )  = wrecs (  <  ,  NN0 ,  G ) )
9 bpoly.2 . . . . . 6  |-  F  = wrecs (  <  ,  NN0 ,  G )
108, 9syl6eqr 2516 . . . . 5  |-  ( x  =  X  -> wrecs (  <  ,  NN0 ,  ( g  e.  _V  |->  [_ ( # `
 dom  g )  /  n ]_ ( ( x ^ n )  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `  k )  /  (
( n  -  k
)  +  1 ) ) ) ) ) )  =  F )
1110fveq1d 5874 . . . 4  |-  ( x  =  X  ->  (wrecs (  <  ,  NN0 , 
( g  e.  _V  |->  [_ ( # `  dom  g )  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) ) ) `  m )  =  ( F `  m ) )
12 fveq2 5872 . . . 4  |-  ( m  =  N  ->  ( F `  m )  =  ( F `  N ) )
1311, 12sylan9eqr 2520 . . 3  |-  ( ( m  =  N  /\  x  =  X )  ->  (wrecs (  <  ,  NN0 ,  ( g  e. 
_V  |->  [_ ( # `  dom  g )  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) ) ) `  m )  =  ( F `  N ) )
14 df-bpoly 29993 . . 3  |- BernPoly  =  ( m  e.  NN0 ,  x  e.  CC  |->  (wrecs (  <  ,  NN0 ,  ( g  e.  _V  |->  [_ ( # `  dom  g
)  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) ) ) `  m ) )
15 fvex 5882 . . 3  |-  ( F `
 N )  e. 
_V
1613, 14, 15ovmpt2a 6432 . 2  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( N BernPoly  X )  =  ( F `  N ) )
17 ltweuz 12075 . . . . 5  |-  <  We  ( ZZ>= `  0 )
18 nn0uz 11140 . . . . . 6  |-  NN0  =  ( ZZ>= `  0 )
19 weeq2 4877 . . . . . 6  |-  ( NN0  =  ( ZZ>= `  0
)  ->  (  <  We 
NN0 
<->  <  We  ( ZZ>= ` 
0 ) ) )
2018, 19ax-mp 5 . . . . 5  |-  (  < 
We  NN0  <->  <  We  ( ZZ>= ` 
0 ) )
2117, 20mpbir 209 . . . 4  |-  <  We  NN0
22 nn0ex 10822 . . . . 5  |-  NN0  e.  _V
23 exse 4852 . . . . 5  |-  ( NN0 
e.  _V  ->  < Se  NN0 )
2422, 23ax-mp 5 . . . 4  |-  < Se  NN0
2521, 24, 9wfr2 29556 . . 3  |-  ( N  e.  NN0  ->  ( F `
 N )  =  ( G `  ( F  |`  Pred (  <  ,  NN0 ,  N ) ) ) )
2625adantr 465 . 2  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( F `  N
)  =  ( G `
 ( F  |`  Pred (  <  ,  NN0 ,  N ) ) ) )
27 prednn0 29478 . . . . . 6  |-  ( N  e.  NN0  ->  Pred (  <  ,  NN0 ,  N
)  =  ( 0 ... ( N  - 
1 ) ) )
2827adantr 465 . . . . 5  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  Pred (  <  ,  NN0 ,  N )  =  ( 0 ... ( N  -  1 ) ) )
2928reseq2d 5283 . . . 4  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( F  |`  Pred (  <  ,  NN0 ,  N
) )  =  ( F  |`  ( 0 ... ( N  - 
1 ) ) ) )
3029fveq2d 5876 . . 3  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( G `  ( F  |`  Pred (  <  ,  NN0 ,  N ) ) )  =  ( G `
 ( F  |`  ( 0 ... ( N  -  1 ) ) ) ) )
3121, 24, 9wfrlem11 29549 . . . . . 6  |-  Fun  F
32 ovex 6324 . . . . . 6  |-  ( 0 ... ( N  - 
1 ) )  e. 
_V
33 resfunexg 6138 . . . . . 6  |-  ( ( Fun  F  /\  (
0 ... ( N  - 
1 ) )  e. 
_V )  ->  ( F  |`  ( 0 ... ( N  -  1 ) ) )  e. 
_V )
3431, 32, 33mp2an 672 . . . . 5  |-  ( F  |`  ( 0 ... ( N  -  1 ) ) )  e.  _V
35 dmeq 5213 . . . . . . . . . . 11  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  dom  g  =  dom  ( F  |`  ( 0 ... ( N  -  1 ) ) ) )
3621, 24, 9wfr1 29555 . . . . . . . . . . . . 13  |-  F  Fn  NN0
37 elfznn0 11797 . . . . . . . . . . . . . 14  |-  ( k  e.  ( 0 ... ( N  -  1 ) )  ->  k  e.  NN0 )
3837ssriv 3503 . . . . . . . . . . . . 13  |-  ( 0 ... ( N  - 
1 ) )  C_  NN0
39 fnssres 5700 . . . . . . . . . . . . 13  |-  ( ( F  Fn  NN0  /\  ( 0 ... ( N  -  1 ) )  C_  NN0 )  -> 
( F  |`  (
0 ... ( N  - 
1 ) ) )  Fn  ( 0 ... ( N  -  1 ) ) )
4036, 38, 39mp2an 672 . . . . . . . . . . . 12  |-  ( F  |`  ( 0 ... ( N  -  1 ) ) )  Fn  (
0 ... ( N  - 
1 ) )
41 fndm 5686 . . . . . . . . . . . 12  |-  ( ( F  |`  ( 0 ... ( N  - 
1 ) ) )  Fn  ( 0 ... ( N  -  1 ) )  ->  dom  ( F  |`  ( 0 ... ( N  - 
1 ) ) )  =  ( 0 ... ( N  -  1 ) ) )
4240, 41ax-mp 5 . . . . . . . . . . 11  |-  dom  ( F  |`  ( 0 ... ( N  -  1 ) ) )  =  ( 0 ... ( N  -  1 ) )
4335, 42syl6eq 2514 . . . . . . . . . 10  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  dom  g  =  ( 0 ... ( N  - 
1 ) ) )
44 fveq1 5871 . . . . . . . . . . . . 13  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  (
g `  k )  =  ( ( F  |`  ( 0 ... ( N  -  1 ) ) ) `  k
) )
45 fvres 5886 . . . . . . . . . . . . 13  |-  ( k  e.  ( 0 ... ( N  -  1 ) )  ->  (
( F  |`  (
0 ... ( N  - 
1 ) ) ) `
 k )  =  ( F `  k
) )
4644, 45sylan9eq 2518 . . . . . . . . . . . 12  |-  ( ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  /\  k  e.  ( 0 ... ( N  -  1 ) ) )  ->  (
g `  k )  =  ( F `  k ) )
4746oveq1d 6311 . . . . . . . . . . 11  |-  ( ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  /\  k  e.  ( 0 ... ( N  -  1 ) ) )  ->  (
( g `  k
)  /  ( ( n  -  k )  +  1 ) )  =  ( ( F `
 k )  / 
( ( n  -  k )  +  1 ) ) )
4847oveq2d 6312 . . . . . . . . . 10  |-  ( ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  /\  k  e.  ( 0 ... ( N  -  1 ) ) )  ->  (
( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) )  =  ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) )
4943, 48sumeq12rdv 13541 . . . . . . . . 9  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `
 k )  / 
( ( n  -  k )  +  1 ) ) )  = 
sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  (
( F `  k
)  /  ( ( n  -  k )  +  1 ) ) ) )
5049oveq2d 6312 . . . . . . . 8  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  (
( X ^ n
)  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `
 k )  / 
( ( n  -  k )  +  1 ) ) ) )  =  ( ( X ^ n )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( n  _C  k
)  x.  ( ( F `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )
5150csbeq2dv 3843 . . . . . . 7  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  [_ ( # `
 dom  g )  /  n ]_ ( ( X ^ n )  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `  k )  /  (
( n  -  k
)  +  1 ) ) ) )  = 
[_ ( # `  dom  g )  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( n  _C  k
)  x.  ( ( F `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )
5243fveq2d 5876 . . . . . . . 8  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  ( # `
 dom  g )  =  ( # `  (
0 ... ( N  - 
1 ) ) ) )
5352csbeq1d 3437 . . . . . . 7  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  [_ ( # `
 dom  g )  /  n ]_ ( ( X ^ n )  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  (
( F `  k
)  /  ( ( n  -  k )  +  1 ) ) ) )  =  [_ ( # `  ( 0 ... ( N  - 
1 ) ) )  /  n ]_ (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) ) )
5451, 53eqtrd 2498 . . . . . 6  |-  ( g  =  ( F  |`  ( 0 ... ( N  -  1 ) ) )  ->  [_ ( # `
 dom  g )  /  n ]_ ( ( X ^ n )  -  sum_ k  e.  dom  g ( ( n  _C  k )  x.  ( ( g `  k )  /  (
( n  -  k
)  +  1 ) ) ) )  = 
[_ ( # `  (
0 ... ( N  - 
1 ) ) )  /  n ]_ (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) ) )
55 ovex 6324 . . . . . . 7  |-  ( ( X ^ n )  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  (
( F `  k
)  /  ( ( n  -  k )  +  1 ) ) ) )  e.  _V
5655csbex 4590 . . . . . 6  |-  [_ ( # `
 ( 0 ... ( N  -  1 ) ) )  /  n ]_ ( ( X ^ n )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( n  _C  k
)  x.  ( ( F `  k )  /  ( ( n  -  k )  +  1 ) ) ) )  e.  _V
5754, 5, 56fvmpt 5956 . . . . 5  |-  ( ( F  |`  ( 0 ... ( N  - 
1 ) ) )  e.  _V  ->  ( G `  ( F  |`  ( 0 ... ( N  -  1 ) ) ) )  = 
[_ ( # `  (
0 ... ( N  - 
1 ) ) )  /  n ]_ (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) ) )
5834, 57ax-mp 5 . . . 4  |-  ( G `
 ( F  |`  ( 0 ... ( N  -  1 ) ) ) )  = 
[_ ( # `  (
0 ... ( N  - 
1 ) ) )  /  n ]_ (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) )
59 nfcvd 2620 . . . . . . 7  |-  ( N  e.  NN0  ->  F/_ n
( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( F `  k )  /  ( ( N  -  k )  +  1 ) ) ) ) )
60 oveq2 6304 . . . . . . . 8  |-  ( n  =  N  ->  ( X ^ n )  =  ( X ^ N
) )
61 oveq1 6303 . . . . . . . . . 10  |-  ( n  =  N  ->  (
n  _C  k )  =  ( N  _C  k ) )
62 oveq1 6303 . . . . . . . . . . . 12  |-  ( n  =  N  ->  (
n  -  k )  =  ( N  -  k ) )
6362oveq1d 6311 . . . . . . . . . . 11  |-  ( n  =  N  ->  (
( n  -  k
)  +  1 )  =  ( ( N  -  k )  +  1 ) )
6463oveq2d 6312 . . . . . . . . . 10  |-  ( n  =  N  ->  (
( F `  k
)  /  ( ( n  -  k )  +  1 ) )  =  ( ( F `
 k )  / 
( ( N  -  k )  +  1 ) ) )
6561, 64oveq12d 6314 . . . . . . . . 9  |-  ( n  =  N  ->  (
( n  _C  k
)  x.  ( ( F `  k )  /  ( ( n  -  k )  +  1 ) ) )  =  ( ( N  _C  k )  x.  ( ( F `  k )  /  (
( N  -  k
)  +  1 ) ) ) )
6665sumeq2sdv 13538 . . . . . . . 8  |-  ( n  =  N  ->  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) )  =  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( F `  k )  /  ( ( N  -  k )  +  1 ) ) ) )
6760, 66oveq12d 6314 . . . . . . 7  |-  ( n  =  N  ->  (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( F `  k )  /  ( ( N  -  k )  +  1 ) ) ) ) )
6859, 67csbiegf 3454 . . . . . 6  |-  ( N  e.  NN0  ->  [_ N  /  n ]_ ( ( X ^ n )  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  (
( F `  k
)  /  ( ( n  -  k )  +  1 ) ) ) )  =  ( ( X ^ N
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( N  _C  k )  x.  ( ( F `  k )  /  (
( N  -  k
)  +  1 ) ) ) ) )
6968adantr 465 . . . . 5  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  [_ N  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( n  _C  k
)  x.  ( ( F `  k )  /  ( ( n  -  k )  +  1 ) ) ) )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( N  _C  k )  x.  (
( F `  k
)  /  ( ( N  -  k )  +  1 ) ) ) ) )
70 nn0z 10908 . . . . . . . . . 10  |-  ( N  e.  NN0  ->  N  e.  ZZ )
71 fz01en 11738 . . . . . . . . . 10  |-  ( N  e.  ZZ  ->  (
0 ... ( N  - 
1 ) )  ~~  ( 1 ... N
) )
7270, 71syl 16 . . . . . . . . 9  |-  ( N  e.  NN0  ->  ( 0 ... ( N  - 
1 ) )  ~~  ( 1 ... N
) )
73 fzfi 12085 . . . . . . . . . 10  |-  ( 0 ... ( N  - 
1 ) )  e. 
Fin
74 fzfi 12085 . . . . . . . . . 10  |-  ( 1 ... N )  e. 
Fin
75 hashen 12423 . . . . . . . . . 10  |-  ( ( ( 0 ... ( N  -  1 ) )  e.  Fin  /\  ( 1 ... N
)  e.  Fin )  ->  ( ( # `  (
0 ... ( N  - 
1 ) ) )  =  ( # `  (
1 ... N ) )  <-> 
( 0 ... ( N  -  1 ) )  ~~  ( 1 ... N ) ) )
7673, 74, 75mp2an 672 . . . . . . . . 9  |-  ( (
# `  ( 0 ... ( N  -  1 ) ) )  =  ( # `  (
1 ... N ) )  <-> 
( 0 ... ( N  -  1 ) )  ~~  ( 1 ... N ) )
7772, 76sylibr 212 . . . . . . . 8  |-  ( N  e.  NN0  ->  ( # `  ( 0 ... ( N  -  1 ) ) )  =  (
# `  ( 1 ... N ) ) )
78 hashfz1 12422 . . . . . . . 8  |-  ( N  e.  NN0  ->  ( # `  ( 1 ... N
) )  =  N )
7977, 78eqtrd 2498 . . . . . . 7  |-  ( N  e.  NN0  ->  ( # `  ( 0 ... ( N  -  1 ) ) )  =  N )
8079adantr 465 . . . . . 6  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( # `  (
0 ... ( N  - 
1 ) ) )  =  N )
8180csbeq1d 3437 . . . . 5  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  [_ ( # `  (
0 ... ( N  - 
1 ) ) )  /  n ]_ (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) )  = 
[_ N  /  n ]_ ( ( X ^
n )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( n  _C  k
)  x.  ( ( F `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) )
82 simpr 461 . . . . . . . . . 10  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  X  e.  CC )
83 fveq2 5872 . . . . . . . . . . . 12  |-  ( m  =  k  ->  ( F `  m )  =  ( F `  k ) )
8411, 83sylan9eqr 2520 . . . . . . . . . . 11  |-  ( ( m  =  k  /\  x  =  X )  ->  (wrecs (  <  ,  NN0 ,  ( g  e. 
_V  |->  [_ ( # `  dom  g )  /  n ]_ ( ( x ^
n )  -  sum_ k  e.  dom  g ( ( n  _C  k
)  x.  ( ( g `  k )  /  ( ( n  -  k )  +  1 ) ) ) ) ) ) `  m )  =  ( F `  k ) )
85 fvex 5882 . . . . . . . . . . 11  |-  ( F `
 k )  e. 
_V
8684, 14, 85ovmpt2a 6432 . . . . . . . . . 10  |-  ( ( k  e.  NN0  /\  X  e.  CC )  ->  ( k BernPoly  X )  =  ( F `  k ) )
8737, 82, 86syl2anr 478 . . . . . . . . 9  |-  ( ( ( N  e.  NN0  /\  X  e.  CC )  /\  k  e.  ( 0 ... ( N  -  1 ) ) )  ->  ( k BernPoly  X )  =  ( F `
 k ) )
8887oveq1d 6311 . . . . . . . 8  |-  ( ( ( N  e.  NN0  /\  X  e.  CC )  /\  k  e.  ( 0 ... ( N  -  1 ) ) )  ->  ( (
k BernPoly  X )  /  (
( N  -  k
)  +  1 ) )  =  ( ( F `  k )  /  ( ( N  -  k )  +  1 ) ) )
8988oveq2d 6312 . . . . . . 7  |-  ( ( ( N  e.  NN0  /\  X  e.  CC )  /\  k  e.  ( 0 ... ( N  -  1 ) ) )  ->  ( ( N  _C  k )  x.  ( ( k BernPoly  X
)  /  ( ( N  -  k )  +  1 ) ) )  =  ( ( N  _C  k )  x.  ( ( F `
 k )  / 
( ( N  -  k )  +  1 ) ) ) )
9089sumeq2dv 13537 . . . . . 6  |-  ( ( N  e.  NN0  /\  X  e.  CC )  -> 
sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( N  _C  k )  x.  (
( k BernPoly  X )  /  ( ( N  -  k )  +  1 ) ) )  =  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( N  _C  k )  x.  (
( F `  k
)  /  ( ( N  -  k )  +  1 ) ) ) )
9190oveq2d 6312 . . . . 5  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( k BernPoly  X )  /  (
( N  -  k
)  +  1 ) ) ) )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( F `  k )  /  ( ( N  -  k )  +  1 ) ) ) ) )
9269, 81, 913eqtr4d 2508 . . . 4  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  [_ ( # `  (
0 ... ( N  - 
1 ) ) )  /  n ]_ (
( X ^ n
)  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( n  _C  k )  x.  ( ( F `  k )  /  (
( n  -  k
)  +  1 ) ) ) )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( k BernPoly  X )  /  (
( N  -  k
)  +  1 ) ) ) ) )
9358, 92syl5eq 2510 . . 3  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( G `  ( F  |`  ( 0 ... ( N  -  1 ) ) ) )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( k BernPoly  X )  /  (
( N  -  k
)  +  1 ) ) ) ) )
9430, 93eqtrd 2498 . 2  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( G `  ( F  |`  Pred (  <  ,  NN0 ,  N ) ) )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  -  1 ) ) ( ( N  _C  k )  x.  (
( k BernPoly  X )  /  ( ( N  -  k )  +  1 ) ) ) ) )
9516, 26, 943eqtrd 2502 1  |-  ( ( N  e.  NN0  /\  X  e.  CC )  ->  ( N BernPoly  X )  =  ( ( X ^ N )  -  sum_ k  e.  ( 0 ... ( N  - 
1 ) ) ( ( N  _C  k
)  x.  ( ( k BernPoly  X )  /  (
( N  -  k
)  +  1 ) ) ) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    = wceq 1395    e. wcel 1819   _Vcvv 3109   [_csb 3430    C_ wss 3471   class class class wbr 4456    |-> cmpt 4515   Se wse 4845    We wwe 4846   dom cdm 5008    |` cres 5010   Fun wfun 5588    Fn wfn 5589   ` cfv 5594  (class class class)co 6296    ~~ cen 7532   Fincfn 7535   CCcc 9507   0cc0 9509   1c1 9510    + caddc 9512    x. cmul 9514    < clt 9645    - cmin 9824    / cdiv 10227   NN0cn0 10816   ZZcz 10885   ZZ>=cuz 11106   ...cfz 11697   ^cexp 12169    _C cbc 12383   #chash 12408   sum_csu 13520   Predcpred 29439  wrecscwrecs 29531   BernPoly cbp 29992
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1619  ax-4 1632  ax-5 1705  ax-6 1748  ax-7 1791  ax-8 1821  ax-9 1823  ax-10 1838  ax-11 1843  ax-12 1855  ax-13 2000  ax-ext 2435  ax-rep 4568  ax-sep 4578  ax-nul 4586  ax-pow 4634  ax-pr 4695  ax-un 6591  ax-inf2 8075  ax-cnex 9565  ax-resscn 9566  ax-1cn 9567  ax-icn 9568  ax-addcl 9569  ax-addrcl 9570  ax-mulcl 9571  ax-mulrcl 9572  ax-mulcom 9573  ax-addass 9574  ax-mulass 9575  ax-distr 9576  ax-i2m1 9577  ax-1ne0 9578  ax-1rid 9579  ax-rnegex 9580  ax-rrecex 9581  ax-cnre 9582  ax-pre-lttri 9583  ax-pre-lttrn 9584  ax-pre-ltadd 9585  ax-pre-mulgt0 9586
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 974  df-3an 975  df-tru 1398  df-fal 1401  df-ex 1614  df-nf 1618  df-sb 1741  df-eu 2287  df-mo 2288  df-clab 2443  df-cleq 2449  df-clel 2452  df-nfc 2607  df-ne 2654  df-nel 2655  df-ral 2812  df-rex 2813  df-reu 2814  df-rmo 2815  df-rab 2816  df-v 3111  df-sbc 3328  df-csb 3431  df-dif 3474  df-un 3476  df-in 3478  df-ss 3485  df-pss 3487  df-nul 3794  df-if 3945  df-pw 4017  df-sn 4033  df-pr 4035  df-tp 4037  df-op 4039  df-uni 4252  df-int 4289  df-iun 4334  df-br 4457  df-opab 4516  df-mpt 4517  df-tr 4551  df-eprel 4800  df-id 4804  df-po 4809  df-so 4810  df-fr 4847  df-se 4848  df-we 4849  df-ord 4890  df-on 4891  df-lim 4892  df-suc 4893  df-xp 5014  df-rel 5015  df-cnv 5016  df-co 5017  df-dm 5018  df-rn 5019  df-res 5020  df-ima 5021  df-iota 5557  df-fun 5596  df-fn 5597  df-f 5598  df-f1 5599  df-fo 5600  df-f1o 5601  df-fv 5602  df-isom 5603  df-riota 6258  df-ov 6299  df-oprab 6300  df-mpt2 6301  df-om 6700  df-1st 6799  df-2nd 6800  df-recs 7060  df-rdg 7094  df-1o 7148  df-er 7329  df-en 7536  df-dom 7537  df-sdom 7538  df-fin 7539  df-card 8337  df-pnf 9647  df-mnf 9648  df-xr 9649  df-ltxr 9650  df-le 9651  df-sub 9826  df-neg 9827  df-nn 10557  df-n0 10817  df-z 10886  df-uz 11107  df-fz 11698  df-seq 12111  df-hash 12409  df-sum 13521  df-pred 29440  df-wrecs 29532  df-bpoly 29993
This theorem is referenced by:  bpolyval  29995
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