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Theorem opprex 14487
Description: Existence of the opposite ring. If you know that  R is a ring, see opprring 14493. (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 2238 . . 3  |-  ( Base `  R )  =  (
Base `  R )
2 eqid 2238 . . 3  |-  ( .r
`  R )  =  ( .r `  R
)
3 opprex.o . . 3  |-  O  =  (oppr
`  R )
41, 2, 3opprvalg 14483 . 2  |-  ( R  e.  V  ->  O  =  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r `  R
) >. ) )
5 mulrslid 13545 . . . . 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 13437 . . . 4  |-  ( R  e.  V  ->  ( .r `  R )  e. 
_V )
9 tposexg 6533 . . . 4  |-  ( ( .r `  R )  e.  _V  -> tpos  ( .r
`  R )  e. 
_V )
108, 9syl 14 . . 3  |-  ( R  e.  V  -> tpos  ( .r
`  R )  e. 
_V )
11 setsex 13442 . . 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 1380 . 2  |-  ( R  e.  V  ->  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r
`  R ) >.
)  e.  _V )
134, 12eqeltrd 2315 1  |-  ( R  e.  V  ->  O  e.  _V )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    = wceq 1402    e. wcel 2209   _Vcvv 2821   <.cop 3712   ` cfv 5380  (class class class)co 6088  tpos ctpos 6519   NNcn 9313   ndxcnx 13407   sSet csts 13408  Slot cslot 13409   Basecbs 13410   .rcmulr 13491  opprcoppr 14481
This proof depends on 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 4251  ax-nul 4261  ax-pow 4313  ax-pr 4348  ax-un 4580  ax-setind 4686  ax-cnex 8276  ax-resscn 8277  ax-1re 8279  ax-addrcl 8282
This proof 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-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 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-br 4132  df-opab 4194  df-mpt 4195  df-id 4440  df-xp 4782  df-rel 4783  df-cnv 4784  df-co 4785  df-dm 4786  df-rn 4787  df-res 4788  df-ima 4789  df-iota 5340  df-fun 5382  df-fn 5383  df-fv 5388  df-ov 6091  df-oprab 6092  df-mpo 6093  df-tpos 6520  df-inn 9314  df-2 9372  df-3 9373  df-ndx 13413  df-slot 13414  df-sets 13417  df-mulr 13504  df-oppr 14482
This theorem is used by:  opprrngbg  14492  oppr0g  14496  oppr1g  14497  opprnegg  14498  opprsubgg  14499  crngridl  14976
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