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Theorem xpsaddlem 15432
Description: Lemma for xpsadd 15433 and xpsmul 15434. (Contributed by Mario Carneiro, 15-Aug-2015.)
Hypotheses
Ref Expression
xpsval.t  |-  T  =  ( R  X.s  S )
xpsval.x  |-  X  =  ( Base `  R
)
xpsval.y  |-  Y  =  ( Base `  S
)
xpsval.1  |-  ( ph  ->  R  e.  V )
xpsval.2  |-  ( ph  ->  S  e.  W )
xpsadd.3  |-  ( ph  ->  A  e.  X )
xpsadd.4  |-  ( ph  ->  B  e.  Y )
xpsadd.5  |-  ( ph  ->  C  e.  X )
xpsadd.6  |-  ( ph  ->  D  e.  Y )
xpsadd.7  |-  ( ph  ->  ( A  .x.  C
)  e.  X )
xpsadd.8  |-  ( ph  ->  ( B  .X.  D
)  e.  Y )
xpsaddlem.m  |-  .x.  =  ( E `  R )
xpsaddlem.n  |-  .X.  =  ( E `  S )
xpsaddlem.p  |-  .xb  =  ( E `  T )
xpsaddlem.f  |-  F  =  ( x  e.  X ,  y  e.  Y  |->  `' ( { x }  +c  { y } ) )
xpsaddlem.u  |-  U  =  ( (Scalar `  R
) X_s `' ( { R }  +c  { S }
) )
xpsaddlem.1  |-  ( (
ph  /\  `' ( { A }  +c  { B } )  e.  ran  F  /\  `' ( { C }  +c  { D } )  e.  ran  F )  ->  ( ( `' F `  `' ( { A }  +c  { B } ) ) 
.xb  ( `' F `  `' ( { C }  +c  { D }
) ) )  =  ( `' F `  ( `' ( { A }  +c  { B }
) ( E `  U ) `' ( { C }  +c  { D } ) ) ) )
xpsaddlem.2  |-  ( ( `' ( { R }  +c  { S }
)  Fn  2o  /\  `' ( { A }  +c  { B }
)  e.  ( Base `  U )  /\  `' ( { C }  +c  { D } )  e.  ( Base `  U
) )  ->  ( `' ( { A }  +c  { B }
) ( E `  U ) `' ( { C }  +c  { D } ) )  =  ( k  e.  2o  |->  ( ( `' ( { A }  +c  { B } ) `
 k ) ( E `  ( `' ( { R }  +c  { S } ) `
 k ) ) ( `' ( { C }  +c  { D } ) `  k
) ) ) )
Assertion
Ref Expression
xpsaddlem  |-  ( ph  ->  ( <. A ,  B >. 
.xb  <. C ,  D >. )  =  <. ( A  .x.  C ) ,  ( B  .X.  D
) >. )
Distinct variable groups:    x, k,
y, A    B, k, x, y    C, k, x, y    D, k, x, y    S, k    U, k    x, W    ph, k    .x. , k, x, y    .X. , k, x, y   
k, X, x, y    R, k, x    k, Y, x, y
Allowed substitution hints:    ph( x, y)    R( y)    S( x, y)    .xb (
x, y, k)    T( x, y, k)    U( x, y)    E( x, y, k)    F( x, y, k)    V( x, y, k)    W( y, k)

Proof of Theorem xpsaddlem
StepHypRef Expression
1 df-ov 6308 . . . . 5  |-  ( A F B )  =  ( F `  <. A ,  B >. )
2 xpsadd.3 . . . . . 6  |-  ( ph  ->  A  e.  X )
3 xpsadd.4 . . . . . 6  |-  ( ph  ->  B  e.  Y )
4 xpsaddlem.f . . . . . . 7  |-  F  =  ( x  e.  X ,  y  e.  Y  |->  `' ( { x }  +c  { y } ) )
54xpsfval 15424 . . . . . 6  |-  ( ( A  e.  X  /\  B  e.  Y )  ->  ( A F B )  =  `' ( { A }  +c  { B } ) )
62, 3, 5syl2anc 665 . . . . 5  |-  ( ph  ->  ( A F B )  =  `' ( { A }  +c  { B } ) )
71, 6syl5eqr 2484 . . . 4  |-  ( ph  ->  ( F `  <. A ,  B >. )  =  `' ( { A }  +c  { B }
) )
8 opelxpi 4886 . . . . . 6  |-  ( ( A  e.  X  /\  B  e.  Y )  -> 
<. A ,  B >.  e.  ( X  X.  Y
) )
92, 3, 8syl2anc 665 . . . . 5  |-  ( ph  -> 
<. A ,  B >.  e.  ( X  X.  Y
) )
104xpsff1o2 15428 . . . . . . 7  |-  F :
( X  X.  Y
)
-1-1-onto-> ran  F
11 f1of 5831 . . . . . . 7  |-  ( F : ( X  X.  Y ) -1-1-onto-> ran  F  ->  F : ( X  X.  Y ) --> ran  F
)
1210, 11ax-mp 5 . . . . . 6  |-  F :
( X  X.  Y
) --> ran  F
1312ffvelrni 6036 . . . . 5  |-  ( <. A ,  B >.  e.  ( X  X.  Y
)  ->  ( F `  <. A ,  B >. )  e.  ran  F
)
149, 13syl 17 . . . 4  |-  ( ph  ->  ( F `  <. A ,  B >. )  e.  ran  F )
157, 14eqeltrrd 2518 . . 3  |-  ( ph  ->  `' ( { A }  +c  { B }
)  e.  ran  F
)
16 df-ov 6308 . . . . 5  |-  ( C F D )  =  ( F `  <. C ,  D >. )
17 xpsadd.5 . . . . . 6  |-  ( ph  ->  C  e.  X )
18 xpsadd.6 . . . . . 6  |-  ( ph  ->  D  e.  Y )
194xpsfval 15424 . . . . . 6  |-  ( ( C  e.  X  /\  D  e.  Y )  ->  ( C F D )  =  `' ( { C }  +c  { D } ) )
2017, 18, 19syl2anc 665 . . . . 5  |-  ( ph  ->  ( C F D )  =  `' ( { C }  +c  { D } ) )
2116, 20syl5eqr 2484 . . . 4  |-  ( ph  ->  ( F `  <. C ,  D >. )  =  `' ( { C }  +c  { D }
) )
22 opelxpi 4886 . . . . . 6  |-  ( ( C  e.  X  /\  D  e.  Y )  -> 
<. C ,  D >.  e.  ( X  X.  Y
) )
2317, 18, 22syl2anc 665 . . . . 5  |-  ( ph  -> 
<. C ,  D >.  e.  ( X  X.  Y
) )
2412ffvelrni 6036 . . . . 5  |-  ( <. C ,  D >.  e.  ( X  X.  Y
)  ->  ( F `  <. C ,  D >. )  e.  ran  F
)
2523, 24syl 17 . . . 4  |-  ( ph  ->  ( F `  <. C ,  D >. )  e.  ran  F )
2621, 25eqeltrrd 2518 . . 3  |-  ( ph  ->  `' ( { C }  +c  { D }
)  e.  ran  F
)
27 xpsaddlem.1 . . 3  |-  ( (
ph  /\  `' ( { A }  +c  { B } )  e.  ran  F  /\  `' ( { C }  +c  { D } )  e.  ran  F )  ->  ( ( `' F `  `' ( { A }  +c  { B } ) ) 
.xb  ( `' F `  `' ( { C }  +c  { D }
) ) )  =  ( `' F `  ( `' ( { A }  +c  { B }
) ( E `  U ) `' ( { C }  +c  { D } ) ) ) )
2815, 26, 27mpd3an23 1362 . 2  |-  ( ph  ->  ( ( `' F `  `' ( { A }  +c  { B }
) )  .xb  ( `' F `  `' ( { C }  +c  { D } ) ) )  =  ( `' F `  ( `' ( { A }  +c  { B } ) ( E `  U
) `' ( { C }  +c  { D } ) ) ) )
29 f1ocnvfv 6192 . . . . 5  |-  ( ( F : ( X  X.  Y ) -1-1-onto-> ran  F  /\  <. A ,  B >.  e.  ( X  X.  Y ) )  -> 
( ( F `  <. A ,  B >. )  =  `' ( { A }  +c  { B } )  ->  ( `' F `  `' ( { A }  +c  { B } ) )  =  <. A ,  B >. ) )
3010, 9, 29sylancr 667 . . . 4  |-  ( ph  ->  ( ( F `  <. A ,  B >. )  =  `' ( { A }  +c  { B } )  ->  ( `' F `  `' ( { A }  +c  { B } ) )  =  <. A ,  B >. ) )
317, 30mpd 15 . . 3  |-  ( ph  ->  ( `' F `  `' ( { A }  +c  { B }
) )  =  <. A ,  B >. )
32 f1ocnvfv 6192 . . . . 5  |-  ( ( F : ( X  X.  Y ) -1-1-onto-> ran  F  /\  <. C ,  D >.  e.  ( X  X.  Y ) )  -> 
( ( F `  <. C ,  D >. )  =  `' ( { C }  +c  { D } )  ->  ( `' F `  `' ( { C }  +c  { D } ) )  =  <. C ,  D >. ) )
3310, 23, 32sylancr 667 . . . 4  |-  ( ph  ->  ( ( F `  <. C ,  D >. )  =  `' ( { C }  +c  { D } )  ->  ( `' F `  `' ( { C }  +c  { D } ) )  =  <. C ,  D >. ) )
3421, 33mpd 15 . . 3  |-  ( ph  ->  ( `' F `  `' ( { C }  +c  { D }
) )  =  <. C ,  D >. )
3531, 34oveq12d 6323 . 2  |-  ( ph  ->  ( ( `' F `  `' ( { A }  +c  { B }
) )  .xb  ( `' F `  `' ( { C }  +c  { D } ) ) )  =  ( <. A ,  B >.  .xb 
<. C ,  D >. ) )
36 xpsval.1 . . . . . . 7  |-  ( ph  ->  R  e.  V )
37 xpsval.2 . . . . . . 7  |-  ( ph  ->  S  e.  W )
38 xpscfn 15416 . . . . . . 7  |-  ( ( R  e.  V  /\  S  e.  W )  ->  `' ( { R }  +c  { S }
)  Fn  2o )
3936, 37, 38syl2anc 665 . . . . . 6  |-  ( ph  ->  `' ( { R }  +c  { S }
)  Fn  2o )
40 xpsval.t . . . . . . . 8  |-  T  =  ( R  X.s  S )
41 xpsval.x . . . . . . . 8  |-  X  =  ( Base `  R
)
42 xpsval.y . . . . . . . 8  |-  Y  =  ( Base `  S
)
43 eqid 2429 . . . . . . . 8  |-  (Scalar `  R )  =  (Scalar `  R )
44 xpsaddlem.u . . . . . . . 8  |-  U  =  ( (Scalar `  R
) X_s `' ( { R }  +c  { S }
) )
4540, 41, 42, 36, 37, 4, 43, 44xpslem 15430 . . . . . . 7  |-  ( ph  ->  ran  F  =  (
Base `  U )
)
4615, 45eleqtrd 2519 . . . . . 6  |-  ( ph  ->  `' ( { A }  +c  { B }
)  e.  ( Base `  U ) )
4726, 45eleqtrd 2519 . . . . . 6  |-  ( ph  ->  `' ( { C }  +c  { D }
)  e.  ( Base `  U ) )
48 xpsaddlem.2 . . . . . 6  |-  ( ( `' ( { R }  +c  { S }
)  Fn  2o  /\  `' ( { A }  +c  { B }
)  e.  ( Base `  U )  /\  `' ( { C }  +c  { D } )  e.  ( Base `  U
) )  ->  ( `' ( { A }  +c  { B }
) ( E `  U ) `' ( { C }  +c  { D } ) )  =  ( k  e.  2o  |->  ( ( `' ( { A }  +c  { B } ) `
 k ) ( E `  ( `' ( { R }  +c  { S } ) `
 k ) ) ( `' ( { C }  +c  { D } ) `  k
) ) ) )
4939, 46, 47, 48syl3anc 1264 . . . . 5  |-  ( ph  ->  ( `' ( { A }  +c  { B } ) ( E `
 U ) `' ( { C }  +c  { D } ) )  =  ( k  e.  2o  |->  ( ( `' ( { A }  +c  { B }
) `  k )
( E `  ( `' ( { R }  +c  { S }
) `  k )
) ( `' ( { C }  +c  { D } ) `  k ) ) ) )
50 xpsadd.7 . . . . . . . 8  |-  ( ph  ->  ( A  .x.  C
)  e.  X )
51 xpsadd.8 . . . . . . . 8  |-  ( ph  ->  ( B  .X.  D
)  e.  Y )
52 xpscfn 15416 . . . . . . . 8  |-  ( ( ( A  .x.  C
)  e.  X  /\  ( B  .X.  D )  e.  Y )  ->  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } )  Fn  2o )
5350, 51, 52syl2anc 665 . . . . . . 7  |-  ( ph  ->  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } )  Fn  2o )
54 dffn5 5926 . . . . . . 7  |-  ( `' ( { ( A 
.x.  C ) }  +c  { ( B 
.X.  D ) } )  Fn  2o  <->  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } )  =  ( k  e.  2o  |->  ( `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) `  k
) ) )
5553, 54sylib 199 . . . . . 6  |-  ( ph  ->  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } )  =  ( k  e.  2o  |->  ( `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) `  k
) ) )
56 iftrue 3921 . . . . . . . . . . . . 13  |-  ( k  =  (/)  ->  if ( k  =  (/) ,  R ,  S )  =  R )
5756fveq2d 5885 . . . . . . . . . . . 12  |-  ( k  =  (/)  ->  ( E `
 if ( k  =  (/) ,  R ,  S ) )  =  ( E `  R
) )
58 xpsaddlem.m . . . . . . . . . . . 12  |-  .x.  =  ( E `  R )
5957, 58syl6eqr 2488 . . . . . . . . . . 11  |-  ( k  =  (/)  ->  ( E `
 if ( k  =  (/) ,  R ,  S ) )  = 
.x.  )
60 iftrue 3921 . . . . . . . . . . 11  |-  ( k  =  (/)  ->  if ( k  =  (/) ,  A ,  B )  =  A )
61 iftrue 3921 . . . . . . . . . . 11  |-  ( k  =  (/)  ->  if ( k  =  (/) ,  C ,  D )  =  C )
6259, 60, 61oveq123d 6326 . . . . . . . . . 10  |-  ( k  =  (/)  ->  ( if ( k  =  (/) ,  A ,  B ) ( E `  if ( k  =  (/) ,  R ,  S ) ) if ( k  =  (/) ,  C ,  D ) )  =  ( A  .x.  C
) )
63 iftrue 3921 . . . . . . . . . 10  |-  ( k  =  (/)  ->  if ( k  =  (/) ,  ( A  .x.  C ) ,  ( B  .X.  D ) )  =  ( A  .x.  C
) )
6462, 63eqtr4d 2473 . . . . . . . . 9  |-  ( k  =  (/)  ->  ( if ( k  =  (/) ,  A ,  B ) ( E `  if ( k  =  (/) ,  R ,  S ) ) if ( k  =  (/) ,  C ,  D ) )  =  if ( k  =  (/) ,  ( A  .x.  C ) ,  ( B  .X.  D )
) )
65 iffalse 3924 . . . . . . . . . . . . 13  |-  ( -.  k  =  (/)  ->  if ( k  =  (/) ,  R ,  S )  =  S )
6665fveq2d 5885 . . . . . . . . . . . 12  |-  ( -.  k  =  (/)  ->  ( E `  if (
k  =  (/) ,  R ,  S ) )  =  ( E `  S
) )
67 xpsaddlem.n . . . . . . . . . . . 12  |-  .X.  =  ( E `  S )
6866, 67syl6eqr 2488 . . . . . . . . . . 11  |-  ( -.  k  =  (/)  ->  ( E `  if (
k  =  (/) ,  R ,  S ) )  = 
.X.  )
69 iffalse 3924 . . . . . . . . . . 11  |-  ( -.  k  =  (/)  ->  if ( k  =  (/) ,  A ,  B )  =  B )
70 iffalse 3924 . . . . . . . . . . 11  |-  ( -.  k  =  (/)  ->  if ( k  =  (/) ,  C ,  D )  =  D )
7168, 69, 70oveq123d 6326 . . . . . . . . . 10  |-  ( -.  k  =  (/)  ->  ( if ( k  =  (/) ,  A ,  B ) ( E `  if ( k  =  (/) ,  R ,  S ) ) if ( k  =  (/) ,  C ,  D ) )  =  ( B  .X.  D
) )
72 iffalse 3924 . . . . . . . . . 10  |-  ( -.  k  =  (/)  ->  if ( k  =  (/) ,  ( A  .x.  C
) ,  ( B 
.X.  D ) )  =  ( B  .X.  D ) )
7371, 72eqtr4d 2473 . . . . . . . . 9  |-  ( -.  k  =  (/)  ->  ( if ( k  =  (/) ,  A ,  B ) ( E `  if ( k  =  (/) ,  R ,  S ) ) if ( k  =  (/) ,  C ,  D ) )  =  if ( k  =  (/) ,  ( A  .x.  C ) ,  ( B  .X.  D )
) )
7464, 73pm2.61i 167 . . . . . . . 8  |-  ( if ( k  =  (/) ,  A ,  B ) ( E `  if ( k  =  (/) ,  R ,  S ) ) if ( k  =  (/) ,  C ,  D ) )  =  if ( k  =  (/) ,  ( A  .x.  C ) ,  ( B  .X.  D )
)
7536adantr 466 . . . . . . . . . . 11  |-  ( (
ph  /\  k  e.  2o )  ->  R  e.  V )
7637adantr 466 . . . . . . . . . . 11  |-  ( (
ph  /\  k  e.  2o )  ->  S  e.  W )
77 simpr 462 . . . . . . . . . . 11  |-  ( (
ph  /\  k  e.  2o )  ->  k  e.  2o )
78 xpscfv 15419 . . . . . . . . . . 11  |-  ( ( R  e.  V  /\  S  e.  W  /\  k  e.  2o )  ->  ( `' ( { R }  +c  { S } ) `  k
)  =  if ( k  =  (/) ,  R ,  S ) )
7975, 76, 77, 78syl3anc 1264 . . . . . . . . . 10  |-  ( (
ph  /\  k  e.  2o )  ->  ( `' ( { R }  +c  { S } ) `
 k )  =  if ( k  =  (/) ,  R ,  S
) )
8079fveq2d 5885 . . . . . . . . 9  |-  ( (
ph  /\  k  e.  2o )  ->  ( E `
 ( `' ( { R }  +c  { S } ) `  k ) )  =  ( E `  if ( k  =  (/) ,  R ,  S ) ) )
812adantr 466 . . . . . . . . . 10  |-  ( (
ph  /\  k  e.  2o )  ->  A  e.  X )
823adantr 466 . . . . . . . . . 10  |-  ( (
ph  /\  k  e.  2o )  ->  B  e.  Y )
83 xpscfv 15419 . . . . . . . . . 10  |-  ( ( A  e.  X  /\  B  e.  Y  /\  k  e.  2o )  ->  ( `' ( { A }  +c  { B } ) `  k
)  =  if ( k  =  (/) ,  A ,  B ) )
8481, 82, 77, 83syl3anc 1264 . . . . . . . . 9  |-  ( (
ph  /\  k  e.  2o )  ->  ( `' ( { A }  +c  { B } ) `
 k )  =  if ( k  =  (/) ,  A ,  B
) )
8517adantr 466 . . . . . . . . . 10  |-  ( (
ph  /\  k  e.  2o )  ->  C  e.  X )
8618adantr 466 . . . . . . . . . 10  |-  ( (
ph  /\  k  e.  2o )  ->  D  e.  Y )
87 xpscfv 15419 . . . . . . . . . 10  |-  ( ( C  e.  X  /\  D  e.  Y  /\  k  e.  2o )  ->  ( `' ( { C }  +c  { D } ) `  k
)  =  if ( k  =  (/) ,  C ,  D ) )
8885, 86, 77, 87syl3anc 1264 . . . . . . . . 9  |-  ( (
ph  /\  k  e.  2o )  ->  ( `' ( { C }  +c  { D } ) `
 k )  =  if ( k  =  (/) ,  C ,  D
) )
8980, 84, 88oveq123d 6326 . . . . . . . 8  |-  ( (
ph  /\  k  e.  2o )  ->  ( ( `' ( { A }  +c  { B }
) `  k )
( E `  ( `' ( { R }  +c  { S }
) `  k )
) ( `' ( { C }  +c  { D } ) `  k ) )  =  ( if ( k  =  (/) ,  A ,  B ) ( E `
 if ( k  =  (/) ,  R ,  S ) ) if ( k  =  (/) ,  C ,  D ) ) )
9050adantr 466 . . . . . . . . 9  |-  ( (
ph  /\  k  e.  2o )  ->  ( A 
.x.  C )  e.  X )
9151adantr 466 . . . . . . . . 9  |-  ( (
ph  /\  k  e.  2o )  ->  ( B 
.X.  D )  e.  Y )
92 xpscfv 15419 . . . . . . . . 9  |-  ( ( ( A  .x.  C
)  e.  X  /\  ( B  .X.  D )  e.  Y  /\  k  e.  2o )  ->  ( `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) `  k
)  =  if ( k  =  (/) ,  ( A  .x.  C ) ,  ( B  .X.  D ) ) )
9390, 91, 77, 92syl3anc 1264 . . . . . . . 8  |-  ( (
ph  /\  k  e.  2o )  ->  ( `' ( { ( A 
.x.  C ) }  +c  { ( B 
.X.  D ) } ) `  k )  =  if ( k  =  (/) ,  ( A 
.x.  C ) ,  ( B  .X.  D
) ) )
9474, 89, 933eqtr4a 2496 . . . . . . 7  |-  ( (
ph  /\  k  e.  2o )  ->  ( ( `' ( { A }  +c  { B }
) `  k )
( E `  ( `' ( { R }  +c  { S }
) `  k )
) ( `' ( { C }  +c  { D } ) `  k ) )  =  ( `' ( { ( A  .x.  C
) }  +c  {
( B  .X.  D
) } ) `  k ) )
9594mpteq2dva 4512 . . . . . 6  |-  ( ph  ->  ( k  e.  2o  |->  ( ( `' ( { A }  +c  { B } ) `  k ) ( E `
 ( `' ( { R }  +c  { S } ) `  k ) ) ( `' ( { C }  +c  { D }
) `  k )
) )  =  ( k  e.  2o  |->  ( `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) `  k
) ) )
9655, 95eqtr4d 2473 . . . . 5  |-  ( ph  ->  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } )  =  ( k  e.  2o  |->  ( ( `' ( { A }  +c  { B } ) `  k
) ( E `  ( `' ( { R }  +c  { S }
) `  k )
) ( `' ( { C }  +c  { D } ) `  k ) ) ) )
9749, 96eqtr4d 2473 . . . 4  |-  ( ph  ->  ( `' ( { A }  +c  { B } ) ( E `
 U ) `' ( { C }  +c  { D } ) )  =  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } ) )
9897fveq2d 5885 . . 3  |-  ( ph  ->  ( `' F `  ( `' ( { A }  +c  { B }
) ( E `  U ) `' ( { C }  +c  { D } ) ) )  =  ( `' F `  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } ) ) )
99 df-ov 6308 . . . . 5  |-  ( ( A  .x.  C ) F ( B  .X.  D ) )  =  ( F `  <. ( A  .x.  C ) ,  ( B  .X.  D ) >. )
1004xpsfval 15424 . . . . . 6  |-  ( ( ( A  .x.  C
)  e.  X  /\  ( B  .X.  D )  e.  Y )  -> 
( ( A  .x.  C ) F ( B  .X.  D )
)  =  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } ) )
10150, 51, 100syl2anc 665 . . . . 5  |-  ( ph  ->  ( ( A  .x.  C ) F ( B  .X.  D )
)  =  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } ) )
10299, 101syl5eqr 2484 . . . 4  |-  ( ph  ->  ( F `  <. ( A  .x.  C ) ,  ( B  .X.  D ) >. )  =  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) )
103 opelxpi 4886 . . . . . 6  |-  ( ( ( A  .x.  C
)  e.  X  /\  ( B  .X.  D )  e.  Y )  ->  <. ( A  .x.  C
) ,  ( B 
.X.  D ) >.  e.  ( X  X.  Y
) )
10450, 51, 103syl2anc 665 . . . . 5  |-  ( ph  -> 
<. ( A  .x.  C
) ,  ( B 
.X.  D ) >.  e.  ( X  X.  Y
) )
105 f1ocnvfv 6192 . . . . 5  |-  ( ( F : ( X  X.  Y ) -1-1-onto-> ran  F  /\  <. ( A  .x.  C ) ,  ( B  .X.  D ) >.  e.  ( X  X.  Y ) )  -> 
( ( F `  <. ( A  .x.  C
) ,  ( B 
.X.  D ) >.
)  =  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } )  -> 
( `' F `  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) )  = 
<. ( A  .x.  C
) ,  ( B 
.X.  D ) >.
) )
10610, 104, 105sylancr 667 . . . 4  |-  ( ph  ->  ( ( F `  <. ( A  .x.  C
) ,  ( B 
.X.  D ) >.
)  =  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D
) } )  -> 
( `' F `  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) )  = 
<. ( A  .x.  C
) ,  ( B 
.X.  D ) >.
) )
107102, 106mpd 15 . . 3  |-  ( ph  ->  ( `' F `  `' ( { ( A  .x.  C ) }  +c  { ( B  .X.  D ) } ) )  = 
<. ( A  .x.  C
) ,  ( B 
.X.  D ) >.
)
10898, 107eqtrd 2470 . 2  |-  ( ph  ->  ( `' F `  ( `' ( { A }  +c  { B }
) ( E `  U ) `' ( { C }  +c  { D } ) ) )  =  <. ( A  .x.  C ) ,  ( B  .X.  D
) >. )
10928, 35, 1083eqtr3d 2478 1  |-  ( ph  ->  ( <. A ,  B >. 
.xb  <. C ,  D >. )  =  <. ( A  .x.  C ) ,  ( B  .X.  D
) >. )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 370    /\ w3a 982    = wceq 1437    e. wcel 1870   (/)c0 3767   ifcif 3915   {csn 4002   <.cop 4008    |-> cmpt 4484    X. cxp 4852   `'ccnv 4853   ran crn 4855    Fn wfn 5596   -->wf 5597   -1-1-onto->wf1o 5600   ` cfv 5601  (class class class)co 6305    |-> cmpt2 6307   2oc2o 7184    +c ccda 8595   Basecbs 15084  Scalarcsca 15155   X_scprds 15303    X.s cxps 15363
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1665  ax-4 1678  ax-5 1751  ax-6 1797  ax-7 1841  ax-8 1872  ax-9 1874  ax-10 1889  ax-11 1894  ax-12 1907  ax-13 2055  ax-ext 2407  ax-rep 4538  ax-sep 4548  ax-nul 4556  ax-pow 4603  ax-pr 4661  ax-un 6597  ax-cnex 9594  ax-resscn 9595  ax-1cn 9596  ax-icn 9597  ax-addcl 9598  ax-addrcl 9599  ax-mulcl 9600  ax-mulrcl 9601  ax-mulcom 9602  ax-addass 9603  ax-mulass 9604  ax-distr 9605  ax-i2m1 9606  ax-1ne0 9607  ax-1rid 9608  ax-rnegex 9609  ax-rrecex 9610  ax-cnre 9611  ax-pre-lttri 9612  ax-pre-lttrn 9613  ax-pre-ltadd 9614  ax-pre-mulgt0 9615
This theorem depends on definitions:  df-bi 188  df-or 371  df-an 372  df-3or 983  df-3an 984  df-tru 1440  df-ex 1660  df-nf 1664  df-sb 1790  df-eu 2270  df-mo 2271  df-clab 2415  df-cleq 2421  df-clel 2424  df-nfc 2579  df-ne 2627  df-nel 2628  df-ral 2787  df-rex 2788  df-reu 2789  df-rab 2791  df-v 3089  df-sbc 3306  df-csb 3402  df-dif 3445  df-un 3447  df-in 3449  df-ss 3456  df-pss 3458  df-nul 3768  df-if 3916  df-pw 3987  df-sn 4003  df-pr 4005  df-tp 4007  df-op 4009  df-uni 4223  df-int 4259  df-iun 4304  df-br 4427  df-opab 4485  df-mpt 4486  df-tr 4521  df-eprel 4765  df-id 4769  df-po 4775  df-so 4776  df-fr 4813  df-we 4815  df-xp 4860  df-rel 4861  df-cnv 4862  df-co 4863  df-dm 4864  df-rn 4865  df-res 4866  df-ima 4867  df-pred 5399  df-ord 5445  df-on 5446  df-lim 5447  df-suc 5448  df-iota 5565  df-fun 5603  df-fn 5604  df-f 5605  df-f1 5606  df-fo 5607  df-f1o 5608  df-fv 5609  df-riota 6267  df-ov 6308  df-oprab 6309  df-mpt2 6310  df-om 6707  df-1st 6807  df-2nd 6808  df-wrecs 7036  df-recs 7098  df-rdg 7136  df-1o 7190  df-2o 7191  df-oadd 7194  df-er 7371  df-map 7482  df-ixp 7531  df-en 7578  df-dom 7579  df-sdom 7580  df-fin 7581  df-sup 7962  df-cda 8596  df-pnf 9676  df-mnf 9677  df-xr 9678  df-ltxr 9679  df-le 9680  df-sub 9861  df-neg 9862  df-nn 10610  df-2 10668  df-3 10669  df-4 10670  df-5 10671  df-6 10672  df-7 10673  df-8 10674  df-9 10675  df-10 10676  df-n0 10870  df-z 10938  df-dec 11052  df-uz 11160  df-fz 11783  df-struct 15086  df-ndx 15087  df-slot 15088  df-base 15089  df-plusg 15165  df-mulr 15166  df-sca 15168  df-vsca 15169  df-ip 15170  df-tset 15171  df-ple 15172  df-ds 15174  df-hom 15176  df-cco 15177  df-prds 15305
This theorem is referenced by:  xpsadd  15433  xpsmul  15434
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