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Theorem islmhm 17123
Description: Property of being a homomorphism of left modules. (Contributed by Stefan O'Rear, 1-Jan-2015.) (Proof shortened by Mario Carneiro, 30-Apr-2015.)
Hypotheses
Ref Expression
islmhm.k  |-  K  =  (Scalar `  S )
islmhm.l  |-  L  =  (Scalar `  T )
islmhm.b  |-  B  =  ( Base `  K
)
islmhm.e  |-  E  =  ( Base `  S
)
islmhm.m  |-  .x.  =  ( .s `  S )
islmhm.n  |-  .X.  =  ( .s `  T )
Assertion
Ref Expression
islmhm  |-  ( F  e.  ( S LMHom  T
)  <->  ( ( S  e.  LMod  /\  T  e. 
LMod )  /\  ( F  e.  ( S  GrpHom  T )  /\  L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y
) )  =  ( x  .X.  ( F `  y ) ) ) ) )
Distinct variable groups:    x, B    y, E    x, y, S   
x, F, y    x, T, y
Allowed substitution hints:    B( y)    .x. ( x, y)   
.X. ( x, y)    E( x)    K( x, y)    L( x, y)

Proof of Theorem islmhm
Dummy variables  f 
s  t  w are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-lmhm 17118 . . 3  |- LMHom  =  ( s  e.  LMod ,  t  e.  LMod  |->  { f  e.  ( s  GrpHom  t )  |  [. (Scalar `  s )  /  w ]. ( (Scalar `  t
)  =  w  /\  A. x  e.  ( Base `  w ) A. y  e.  ( Base `  s
) ( f `  ( x ( .s
`  s ) y ) )  =  ( x ( .s `  t ) ( f `
 y ) ) ) } )
21elmpt2cl 6319 . 2  |-  ( F  e.  ( S LMHom  T
)  ->  ( S  e.  LMod  /\  T  e.  LMod ) )
3 oveq12 6115 . . . . . 6  |-  ( ( s  =  S  /\  t  =  T )  ->  ( s  GrpHom  t )  =  ( S  GrpHom  T ) )
4 fvex 5716 . . . . . . . 8  |-  (Scalar `  s )  e.  _V
54a1i 11 . . . . . . 7  |-  ( ( s  =  S  /\  t  =  T )  ->  (Scalar `  s )  e.  _V )
6 simplr 754 . . . . . . . . . . 11  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  t  =  T )
76fveq2d 5710 . . . . . . . . . 10  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  (Scalar `  t
)  =  (Scalar `  T ) )
8 islmhm.l . . . . . . . . . 10  |-  L  =  (Scalar `  T )
97, 8syl6eqr 2493 . . . . . . . . 9  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  (Scalar `  t
)  =  L )
10 simpr 461 . . . . . . . . . . 11  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  w  =  (Scalar `  s ) )
11 simpll 753 . . . . . . . . . . . 12  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  s  =  S )
1211fveq2d 5710 . . . . . . . . . . 11  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  (Scalar `  s
)  =  (Scalar `  S ) )
1310, 12eqtrd 2475 . . . . . . . . . 10  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  w  =  (Scalar `  S ) )
14 islmhm.k . . . . . . . . . 10  |-  K  =  (Scalar `  S )
1513, 14syl6eqr 2493 . . . . . . . . 9  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  w  =  K )
169, 15eqeq12d 2457 . . . . . . . 8  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( (Scalar `  t )  =  w  <-> 
L  =  K ) )
1715fveq2d 5710 . . . . . . . . . 10  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( Base `  w )  =  (
Base `  K )
)
18 islmhm.b . . . . . . . . . 10  |-  B  =  ( Base `  K
)
1917, 18syl6eqr 2493 . . . . . . . . 9  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( Base `  w )  =  B )
2011fveq2d 5710 . . . . . . . . . . 11  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( Base `  s )  =  (
Base `  S )
)
21 islmhm.e . . . . . . . . . . 11  |-  E  =  ( Base `  S
)
2220, 21syl6eqr 2493 . . . . . . . . . 10  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( Base `  s )  =  E )
2311fveq2d 5710 . . . . . . . . . . . . . 14  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( .s `  s )  =  ( .s `  S ) )
24 islmhm.m . . . . . . . . . . . . . 14  |-  .x.  =  ( .s `  S )
2523, 24syl6eqr 2493 . . . . . . . . . . . . 13  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( .s `  s )  =  .x.  )
2625oveqd 6123 . . . . . . . . . . . 12  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( x
( .s `  s
) y )  =  ( x  .x.  y
) )
2726fveq2d 5710 . . . . . . . . . . 11  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( f `  ( x ( .s
`  s ) y ) )  =  ( f `  ( x 
.x.  y ) ) )
286fveq2d 5710 . . . . . . . . . . . . 13  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( .s `  t )  =  ( .s `  T ) )
29 islmhm.n . . . . . . . . . . . . 13  |-  .X.  =  ( .s `  T )
3028, 29syl6eqr 2493 . . . . . . . . . . . 12  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( .s `  t )  =  .X.  )
3130oveqd 6123 . . . . . . . . . . 11  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( x
( .s `  t
) ( f `  y ) )  =  ( x  .X.  (
f `  y )
) )
3227, 31eqeq12d 2457 . . . . . . . . . 10  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( (
f `  ( x
( .s `  s
) y ) )  =  ( x ( .s `  t ) ( f `  y
) )  <->  ( f `  ( x  .x.  y
) )  =  ( x  .X.  ( f `  y ) ) ) )
3322, 32raleqbidv 2946 . . . . . . . . 9  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( A. y  e.  ( Base `  s ) ( f `
 ( x ( .s `  s ) y ) )  =  ( x ( .s
`  t ) ( f `  y ) )  <->  A. y  e.  E  ( f `  (
x  .x.  y )
)  =  ( x 
.X.  ( f `  y ) ) ) )
3419, 33raleqbidv 2946 . . . . . . . 8  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( A. x  e.  ( Base `  w ) A. y  e.  ( Base `  s
) ( f `  ( x ( .s
`  s ) y ) )  =  ( x ( .s `  t ) ( f `
 y ) )  <->  A. x  e.  B  A. y  e.  E  ( f `  (
x  .x.  y )
)  =  ( x 
.X.  ( f `  y ) ) ) )
3516, 34anbi12d 710 . . . . . . 7  |-  ( ( ( s  =  S  /\  t  =  T )  /\  w  =  (Scalar `  s )
)  ->  ( (
(Scalar `  t )  =  w  /\  A. x  e.  ( Base `  w
) A. y  e.  ( Base `  s
) ( f `  ( x ( .s
`  s ) y ) )  =  ( x ( .s `  t ) ( f `
 y ) ) )  <->  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( f `  ( x  .x.  y
) )  =  ( x  .X.  ( f `  y ) ) ) ) )
365, 35sbcied 3238 . . . . . 6  |-  ( ( s  =  S  /\  t  =  T )  ->  ( [. (Scalar `  s )  /  w ]. ( (Scalar `  t
)  =  w  /\  A. x  e.  ( Base `  w ) A. y  e.  ( Base `  s
) ( f `  ( x ( .s
`  s ) y ) )  =  ( x ( .s `  t ) ( f `
 y ) ) )  <->  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( f `  ( x  .x.  y
) )  =  ( x  .X.  ( f `  y ) ) ) ) )
373, 36rabeqbidv 2982 . . . . 5  |-  ( ( s  =  S  /\  t  =  T )  ->  { f  e.  ( s  GrpHom  t )  | 
[. (Scalar `  s )  /  w ]. ( (Scalar `  t )  =  w  /\  A. x  e.  ( Base `  w
) A. y  e.  ( Base `  s
) ( f `  ( x ( .s
`  s ) y ) )  =  ( x ( .s `  t ) ( f `
 y ) ) ) }  =  {
f  e.  ( S 
GrpHom  T )  |  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  (
f `  ( x  .x.  y ) )  =  ( x  .X.  (
f `  y )
) ) } )
38 ovex 6131 . . . . . 6  |-  ( S 
GrpHom  T )  e.  _V
3938rabex 4458 . . . . 5  |-  { f  e.  ( S  GrpHom  T )  |  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  (
f `  ( x  .x.  y ) )  =  ( x  .X.  (
f `  y )
) ) }  e.  _V
4037, 1, 39ovmpt2a 6236 . . . 4  |-  ( ( S  e.  LMod  /\  T  e.  LMod )  ->  ( S LMHom  T )  =  {
f  e.  ( S 
GrpHom  T )  |  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  (
f `  ( x  .x.  y ) )  =  ( x  .X.  (
f `  y )
) ) } )
4140eleq2d 2510 . . 3  |-  ( ( S  e.  LMod  /\  T  e.  LMod )  ->  ( F  e.  ( S LMHom  T )  <->  F  e.  { f  e.  ( S  GrpHom  T )  |  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  (
f `  ( x  .x.  y ) )  =  ( x  .X.  (
f `  y )
) ) } ) )
42 fveq1 5705 . . . . . . . 8  |-  ( f  =  F  ->  (
f `  ( x  .x.  y ) )  =  ( F `  (
x  .x.  y )
) )
43 fveq1 5705 . . . . . . . . 9  |-  ( f  =  F  ->  (
f `  y )  =  ( F `  y ) )
4443oveq2d 6122 . . . . . . . 8  |-  ( f  =  F  ->  (
x  .X.  ( f `  y ) )  =  ( x  .X.  ( F `  y )
) )
4542, 44eqeq12d 2457 . . . . . . 7  |-  ( f  =  F  ->  (
( f `  (
x  .x.  y )
)  =  ( x 
.X.  ( f `  y ) )  <->  ( F `  ( x  .x.  y
) )  =  ( x  .X.  ( F `  y ) ) ) )
46452ralbidv 2772 . . . . . 6  |-  ( f  =  F  ->  ( A. x  e.  B  A. y  e.  E  ( f `  (
x  .x.  y )
)  =  ( x 
.X.  ( f `  y ) )  <->  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y
) )  =  ( x  .X.  ( F `  y ) ) ) )
4746anbi2d 703 . . . . 5  |-  ( f  =  F  ->  (
( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( f `  ( x  .x.  y ) )  =  ( x 
.X.  ( f `  y ) ) )  <-> 
( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y ) )  =  ( x 
.X.  ( F `  y ) ) ) ) )
4847elrab 3132 . . . 4  |-  ( F  e.  { f  e.  ( S  GrpHom  T )  |  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( f `  ( x  .x.  y
) )  =  ( x  .X.  ( f `  y ) ) ) }  <->  ( F  e.  ( S  GrpHom  T )  /\  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y
) )  =  ( x  .X.  ( F `  y ) ) ) ) )
49 3anass 969 . . . 4  |-  ( ( F  e.  ( S 
GrpHom  T )  /\  L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y
) )  =  ( x  .X.  ( F `  y ) ) )  <-> 
( F  e.  ( S  GrpHom  T )  /\  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x 
.x.  y ) )  =  ( x  .X.  ( F `  y ) ) ) ) )
5048, 49bitr4i 252 . . 3  |-  ( F  e.  { f  e.  ( S  GrpHom  T )  |  ( L  =  K  /\  A. x  e.  B  A. y  e.  E  ( f `  ( x  .x.  y
) )  =  ( x  .X.  ( f `  y ) ) ) }  <->  ( F  e.  ( S  GrpHom  T )  /\  L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y ) )  =  ( x 
.X.  ( F `  y ) ) ) )
5141, 50syl6bb 261 . 2  |-  ( ( S  e.  LMod  /\  T  e.  LMod )  ->  ( F  e.  ( S LMHom  T )  <->  ( F  e.  ( S  GrpHom  T )  /\  L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y ) )  =  ( x 
.X.  ( F `  y ) ) ) ) )
522, 51biadan2 642 1  |-  ( F  e.  ( S LMHom  T
)  <->  ( ( S  e.  LMod  /\  T  e. 
LMod )  /\  ( F  e.  ( S  GrpHom  T )  /\  L  =  K  /\  A. x  e.  B  A. y  e.  E  ( F `  ( x  .x.  y
) )  =  ( x  .X.  ( F `  y ) ) ) ) )
Colors of variables: wff setvar class
Syntax hints:    <-> wb 184    /\ wa 369    /\ w3a 965    = wceq 1369    e. wcel 1756   A.wral 2730   {crab 2734   _Vcvv 2987   [.wsbc 3201   ` cfv 5433  (class class class)co 6106   Basecbs 14189  Scalarcsca 14256   .scvsca 14257    GrpHom cghm 15759   LModclmod 16963   LMHom clmhm 17115
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1591  ax-4 1602  ax-5 1670  ax-6 1708  ax-7 1728  ax-8 1758  ax-9 1760  ax-10 1775  ax-11 1780  ax-12 1792  ax-13 1943  ax-ext 2423  ax-sep 4428  ax-nul 4436  ax-pow 4485  ax-pr 4546
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 967  df-tru 1372  df-ex 1587  df-nf 1590  df-sb 1701  df-eu 2257  df-mo 2258  df-clab 2430  df-cleq 2436  df-clel 2439  df-nfc 2577  df-ne 2622  df-ral 2735  df-rex 2736  df-rab 2739  df-v 2989  df-sbc 3202  df-dif 3346  df-un 3348  df-in 3350  df-ss 3357  df-nul 3653  df-if 3807  df-sn 3893  df-pr 3895  df-op 3899  df-uni 4107  df-br 4308  df-opab 4366  df-id 4651  df-xp 4861  df-rel 4862  df-cnv 4863  df-co 4864  df-dm 4865  df-iota 5396  df-fun 5435  df-fv 5441  df-ov 6109  df-oprab 6110  df-mpt2 6111  df-lmhm 17118
This theorem is referenced by:  islmhm3  17124  lmhmlem  17125  lmhmlin  17131  islmhmd  17135  reslmhm  17148  lmhmpropd  17169
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