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Theorem srgfcl 14251
Description: Functionality of the multiplication operation of a ring. (Contributed by Steve Rodriguez, 9-Sep-2007.) (Revised by AV, 24-Aug-2021.)
Hypotheses
Ref Expression
srgfcl.b  |-  B  =  ( Base `  R
)
srgfcl.t  |-  .x.  =  ( .r `  R )
Assertion
Ref Expression
srgfcl  |-  ( ( R  e. SRing  /\  .x.  Fn  ( B  X.  B
) )  ->  .x.  :
( B  X.  B
) --> B )

Proof of Theorem srgfcl
Dummy variables  a  b  c are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 simpr 110 . 2  |-  ( ( R  e. SRing  /\  .x.  Fn  ( B  X.  B
) )  ->  .x.  Fn  ( B  X.  B
) )
2 srgfcl.b . . . . . . . 8  |-  B  =  ( Base `  R
)
3 srgfcl.t . . . . . . . 8  |-  .x.  =  ( .r `  R )
42, 3srgcl 14248 . . . . . . 7  |-  ( ( R  e. SRing  /\  a  e.  B  /\  b  e.  B )  ->  (
a  .x.  b )  e.  B )
543expb 1235 . . . . . 6  |-  ( ( R  e. SRing  /\  (
a  e.  B  /\  b  e.  B )
)  ->  ( a  .x.  b )  e.  B
)
65ralrimivva 2632 . . . . 5  |-  ( R  e. SRing  ->  A. a  e.  B  A. b  e.  B  ( a  .x.  b
)  e.  B )
7 fveq2 5690 . . . . . . . 8  |-  ( c  =  <. a ,  b
>.  ->  (  .x.  `  c
)  =  (  .x.  ` 
<. a ,  b >.
) )
87eleq1d 2307 . . . . . . 7  |-  ( c  =  <. a ,  b
>.  ->  ( (  .x.  `  c )  e.  B  <->  ( 
.x.  `  <. a ,  b >. )  e.  B
) )
9 df-ov 6078 . . . . . . . . 9  |-  ( a 
.x.  b )  =  (  .x.  `  <. a ,  b >. )
109eqcomi 2242 . . . . . . . 8  |-  (  .x.  ` 
<. a ,  b >.
)  =  ( a 
.x.  b )
1110eleq1i 2304 . . . . . . 7  |-  ( ( 
.x.  `  <. a ,  b >. )  e.  B  <->  ( a  .x.  b )  e.  B )
128, 11bitrdi 196 . . . . . 6  |-  ( c  =  <. a ,  b
>.  ->  ( (  .x.  `  c )  e.  B  <->  ( a  .x.  b )  e.  B ) )
1312ralxp 4918 . . . . 5  |-  ( A. c  e.  ( B  X.  B ) (  .x.  `  c )  e.  B  <->  A. a  e.  B  A. b  e.  B  (
a  .x.  b )  e.  B )
146, 13sylibr 134 . . . 4  |-  ( R  e. SRing  ->  A. c  e.  ( B  X.  B ) (  .x.  `  c
)  e.  B )
1514adantr 276 . . 3  |-  ( ( R  e. SRing  /\  .x.  Fn  ( B  X.  B
) )  ->  A. c  e.  ( B  X.  B
) (  .x.  `  c
)  e.  B )
16 fnfvrnss 5859 . . 3  |-  ( ( 
.x.  Fn  ( B  X.  B )  /\  A. c  e.  ( B  X.  B ) (  .x.  `  c )  e.  B
)  ->  ran  .x.  C_  B
)
171, 15, 16syl2anc 415 . 2  |-  ( ( R  e. SRing  /\  .x.  Fn  ( B  X.  B
) )  ->  ran  .x.  C_  B )
18 df-f 5376 . 2  |-  (  .x.  : ( B  X.  B
) --> B  <->  (  .x.  Fn  ( B  X.  B
)  /\  ran  .x.  C_  B
) )
191, 17, 18sylanbrc 421 1  |-  ( ( R  e. SRing  /\  .x.  Fn  ( B  X.  B
) )  ->  .x.  :
( B  X.  B
) --> B )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    = wceq 1402    e. wcel 2209   A.wral 2528    C_ wss 3220   <.cop 3708    X. cxp 4767   ran crn 4770    Fn wfn 5367   -->wf 5368   ` cfv 5372  (class class class)co 6075   Basecbs 13330   .rcmulr 13409  SRingcsrg 14241
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-pow 4306  ax-pr 4341  ax-un 4573  ax-setind 4679  ax-cnex 8260  ax-resscn 8261  ax-1cn 8262  ax-1re 8263  ax-icn 8264  ax-addcl 8265  ax-addrcl 8266  ax-mulcl 8267  ax-addcom 8269  ax-addass 8271  ax-i2m1 8274  ax-0lt1 8275  ax-0id 8277  ax-rnegex 8278  ax-pre-ltirr 8281  ax-pre-ltadd 8285
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-int 3966  df-iun 4009  df-br 4126  df-opab 4188  df-mpt 4189  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-res 4781  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-fv 5380  df-riota 6028  df-ov 6078  df-oprab 6079  df-mpo 6080  df-pnf 8352  df-mnf 8353  df-ltxr 8355  df-inn 9284  df-2 9342  df-3 9343  df-ndx 13333  df-slot 13334  df-base 13336  df-sets 13337  df-plusg 13421  df-mulr 13422  df-0g 13589  df-mgm 13653  df-sgrp 13694  df-mnd 13707  df-mgp 14195  df-srg 14242
This theorem is referenced by: (None)
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