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Theorem srgfcl 13985
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 13982 . . . . . . 7  |-  ( ( R  e. SRing  /\  a  e.  B  /\  b  e.  B )  ->  (
a  .x.  b )  e.  B )
543expb 1230 . . . . . 6  |-  ( ( R  e. SRing  /\  (
a  e.  B  /\  b  e.  B )
)  ->  ( a  .x.  b )  e.  B
)
65ralrimivva 2614 . . . . 5  |-  ( R  e. SRing  ->  A. a  e.  B  A. b  e.  B  ( a  .x.  b
)  e.  B )
7 fveq2 5639 . . . . . . . 8  |-  ( c  =  <. a ,  b
>.  ->  (  .x.  `  c
)  =  (  .x.  ` 
<. a ,  b >.
) )
87eleq1d 2300 . . . . . . 7  |-  ( c  =  <. a ,  b
>.  ->  ( (  .x.  `  c )  e.  B  <->  ( 
.x.  `  <. a ,  b >. )  e.  B
) )
9 df-ov 6020 . . . . . . . . 9  |-  ( a 
.x.  b )  =  (  .x.  `  <. a ,  b >. )
109eqcomi 2235 . . . . . . . 8  |-  (  .x.  ` 
<. a ,  b >.
)  =  ( a 
.x.  b )
1110eleq1i 2297 . . . . . . 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 4873 . . . . 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 5807 . . 3  |-  ( ( 
.x.  Fn  ( B  X.  B )  /\  A. c  e.  ( B  X.  B ) (  .x.  `  c )  e.  B
)  ->  ran  .x.  C_  B
)
171, 15, 16syl2anc 411 . 2  |-  ( ( R  e. SRing  /\  .x.  Fn  ( B  X.  B
) )  ->  ran  .x.  C_  B )
18 df-f 5330 . 2  |-  (  .x.  : ( B  X.  B
) --> B  <->  (  .x.  Fn  ( B  X.  B
)  /\  ran  .x.  C_  B
) )
191, 17, 18sylanbrc 417 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 1397    e. wcel 2202   A.wral 2510    C_ wss 3200   <.cop 3672    X. cxp 4723   ran crn 4726    Fn wfn 5321   -->wf 5322   ` cfv 5326  (class class class)co 6017   Basecbs 13081   .rcmulr 13160  SRingcsrg 13975
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 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8122  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-addcom 8131  ax-addass 8133  ax-i2m1 8136  ax-0lt1 8137  ax-0id 8139  ax-rnegex 8140  ax-pre-ltirr 8143  ax-pre-ltadd 8147
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-nel 2498  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-nul 3495  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-iun 3972  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-fv 5334  df-riota 5970  df-ov 6020  df-oprab 6021  df-mpo 6022  df-pnf 8215  df-mnf 8216  df-ltxr 8218  df-inn 9143  df-2 9201  df-3 9202  df-ndx 13084  df-slot 13085  df-base 13087  df-sets 13088  df-plusg 13172  df-mulr 13173  df-0g 13340  df-mgm 13438  df-sgrp 13484  df-mnd 13499  df-mgp 13933  df-srg 13976
This theorem is referenced by: (None)
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