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Theorem lindslinindimp2lem3 32160
Description: Lemma 3 for lindslinindsimp2 32163. (Contributed by AV, 25-Apr-2019.) (Revised by AV, 30-Jul-2019.)
Hypotheses
Ref Expression
lindslinind.r  |-  R  =  (Scalar `  M )
lindslinind.b  |-  B  =  ( Base `  R
)
lindslinind.0  |-  .0.  =  ( 0g `  R )
lindslinind.z  |-  Z  =  ( 0g `  M
)
lindslinind.y  |-  Y  =  ( ( invg `  R ) `  (
f `  x )
)
lindslinind.g  |-  G  =  ( f  |`  ( S  \  { x }
) )
Assertion
Ref Expression
lindslinindimp2lem3  |-  ( ( ( S  e.  V  /\  M  e.  LMod )  /\  ( S  C_  ( Base `  M )  /\  x  e.  S
)  /\  ( f  e.  ( B  ^m  S
)  /\  f finSupp  .0.  )
)  ->  G finSupp  .0.  )
Distinct variable groups:    B, f    f, M    R, f, x    S, f, x    f, Z    .0. , f, x
Allowed substitution hints:    B( x)    G( x, f)    M( x)    V( x, f)    Y( x, f)    Z( x)

Proof of Theorem lindslinindimp2lem3
StepHypRef Expression
1 lindslinind.g . 2  |-  G  =  ( f  |`  ( S  \  { x }
) )
2 simp3r 1025 . . 3  |-  ( ( ( S  e.  V  /\  M  e.  LMod )  /\  ( S  C_  ( Base `  M )  /\  x  e.  S
)  /\  ( f  e.  ( B  ^m  S
)  /\  f finSupp  .0.  )
)  ->  f finSupp  .0.  )
3 lindslinind.0 . . . . 5  |-  .0.  =  ( 0g `  R )
4 fvex 5876 . . . . 5  |-  ( 0g
`  R )  e. 
_V
53, 4eqeltri 2551 . . . 4  |-  .0.  e.  _V
65a1i 11 . . 3  |-  ( ( ( S  e.  V  /\  M  e.  LMod )  /\  ( S  C_  ( Base `  M )  /\  x  e.  S
)  /\  ( f  e.  ( B  ^m  S
)  /\  f finSupp  .0.  )
)  ->  .0.  e.  _V )
72, 6fsuppres 7854 . 2  |-  ( ( ( S  e.  V  /\  M  e.  LMod )  /\  ( S  C_  ( Base `  M )  /\  x  e.  S
)  /\  ( f  e.  ( B  ^m  S
)  /\  f finSupp  .0.  )
)  ->  ( f  |`  ( S  \  {
x } ) ) finSupp  .0.  )
81, 7syl5eqbr 4480 1  |-  ( ( ( S  e.  V  /\  M  e.  LMod )  /\  ( S  C_  ( Base `  M )  /\  x  e.  S
)  /\  ( f  e.  ( B  ^m  S
)  /\  f finSupp  .0.  )
)  ->  G finSupp  .0.  )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 369    /\ w3a 973    = wceq 1379    e. wcel 1767   _Vcvv 3113    \ cdif 3473    C_ wss 3476   {csn 4027   class class class wbr 4447    |` cres 5001   ` cfv 5588  (class class class)co 6284    ^m cmap 7420   finSupp cfsupp 7829   Basecbs 14490  Scalarcsca 14558   0gc0g 14695   invgcminusg 15728   LModclmod 17312
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1601  ax-4 1612  ax-5 1680  ax-6 1719  ax-7 1739  ax-8 1769  ax-9 1771  ax-10 1786  ax-11 1791  ax-12 1803  ax-13 1968  ax-ext 2445  ax-sep 4568  ax-nul 4576  ax-pow 4625  ax-pr 4686  ax-un 6576
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 974  df-3an 975  df-tru 1382  df-ex 1597  df-nf 1600  df-sb 1712  df-eu 2279  df-mo 2280  df-clab 2453  df-cleq 2459  df-clel 2462  df-nfc 2617  df-ne 2664  df-ral 2819  df-rex 2820  df-rab 2823  df-v 3115  df-sbc 3332  df-dif 3479  df-un 3481  df-in 3483  df-ss 3490  df-pss 3492  df-nul 3786  df-if 3940  df-pw 4012  df-sn 4028  df-pr 4030  df-tp 4032  df-op 4034  df-uni 4246  df-br 4448  df-opab 4506  df-tr 4541  df-eprel 4791  df-id 4795  df-po 4800  df-so 4801  df-fr 4838  df-we 4840  df-ord 4881  df-on 4882  df-lim 4883  df-suc 4884  df-xp 5005  df-rel 5006  df-cnv 5007  df-co 5008  df-dm 5009  df-rn 5010  df-res 5011  df-ima 5012  df-iota 5551  df-fun 5590  df-fn 5591  df-f 5592  df-f1 5593  df-fo 5594  df-f1o 5595  df-fv 5596  df-ov 6287  df-oprab 6288  df-mpt2 6289  df-om 6685  df-supp 6902  df-er 7311  df-en 7517  df-fin 7520  df-fsupp 7830
This theorem is referenced by:  lindslinindimp2lem4  32161
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