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Theorem opprex 14217
Description: Existence of the opposite ring. If you know that  R is a ring, see opprring 14223. (Contributed by Jim Kingdon, 10-Jan-2025.)
Hypothesis
Ref Expression
opprex.o  |-  O  =  (oppr
`  R )
Assertion
Ref Expression
opprex  |-  ( R  e.  V  ->  O  e.  _V )

Proof of Theorem opprex
StepHypRef Expression
1 eqid 2232 . . 3  |-  ( Base `  R )  =  (
Base `  R )
2 eqid 2232 . . 3  |-  ( .r
`  R )  =  ( .r `  R
)
3 opprex.o . . 3  |-  O  =  (oppr
`  R )
41, 2, 3opprvalg 14213 . 2  |-  ( R  e.  V  ->  O  =  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r `  R
) >. ) )
5 mulrslid 13345 . . . . 5  |-  ( .r  = Slot  ( .r `  ndx )  /\  ( .r `  ndx )  e.  NN )
65simpri 113 . . . 4  |-  ( .r
`  ndx )  e.  NN
76a1i 9 . . 3  |-  ( R  e.  V  ->  ( .r `  ndx )  e.  NN )
85slotex 13239 . . . 4  |-  ( R  e.  V  ->  ( .r `  R )  e. 
_V )
9 tposexg 6489 . . . 4  |-  ( ( .r `  R )  e.  _V  -> tpos  ( .r
`  R )  e. 
_V )
108, 9syl 14 . . 3  |-  ( R  e.  V  -> tpos  ( .r
`  R )  e. 
_V )
11 setsex 13244 . . 3  |-  ( ( R  e.  V  /\  ( .r `  ndx )  e.  NN  /\ tpos  ( .r `  R )  e.  _V )  ->  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r `  R
) >. )  e.  _V )
127, 10, 11mpd3an23 1376 . 2  |-  ( R  e.  V  ->  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r
`  R ) >.
)  e.  _V )
134, 12eqeltrd 2309 1  |-  ( R  e.  V  ->  O  e.  _V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1398    e. wcel 2203   _Vcvv 2813   <.cop 3692   ` cfv 5352  (class class class)co 6050  tpos ctpos 6475   NNcn 9237   ndxcnx 13209   sSet csts 13210  Slot cslot 13211   Basecbs 13212   .rcmulr 13291  opprcoppr 14211
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-nul 4236  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659  ax-cnex 8218  ax-resscn 8219  ax-1re 8221  ax-addrcl 8224
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-ral 2525  df-rex 2526  df-rab 2529  df-v 2815  df-sbc 3043  df-csb 3139  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-nul 3509  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-br 4110  df-opab 4172  df-mpt 4173  df-id 4414  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762  df-iota 5312  df-fun 5354  df-fn 5355  df-fv 5360  df-ov 6053  df-oprab 6054  df-mpo 6055  df-tpos 6476  df-inn 9238  df-2 9296  df-3 9297  df-ndx 13215  df-slot 13216  df-sets 13219  df-mulr 13304  df-oppr 14212
This theorem is referenced by:  opprrngbg  14222  oppr0g  14225  oppr1g  14226  opprnegg  14227  opprsubgg  14228  crngridl  14678
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