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Theorem opprex 13835
Description: Existence of the opposite ring. If you know that  R is a ring, see opprring 13841. (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 2205 . . 3  |-  ( Base `  R )  =  (
Base `  R )
2 eqid 2205 . . 3  |-  ( .r
`  R )  =  ( .r `  R
)
3 opprex.o . . 3  |-  O  =  (oppr
`  R )
41, 2, 3opprvalg 13831 . 2  |-  ( R  e.  V  ->  O  =  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r `  R
) >. ) )
5 mulrslid 12964 . . . . 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 12859 . . . 4  |-  ( R  e.  V  ->  ( .r `  R )  e. 
_V )
9 tposexg 6344 . . . 4  |-  ( ( .r `  R )  e.  _V  -> tpos  ( .r
`  R )  e. 
_V )
108, 9syl 14 . . 3  |-  ( R  e.  V  -> tpos  ( .r
`  R )  e. 
_V )
11 setsex 12864 . . 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 1352 . 2  |-  ( R  e.  V  ->  ( R sSet  <. ( .r `  ndx ) , tpos  ( .r
`  R ) >.
)  e.  _V )
134, 12eqeltrd 2282 1  |-  ( R  e.  V  ->  O  e.  _V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1373    e. wcel 2176   _Vcvv 2772   <.cop 3636   ` cfv 5271  (class class class)co 5944  tpos ctpos 6330   NNcn 9036   ndxcnx 12829   sSet csts 12830  Slot cslot 12831   Basecbs 12832   .rcmulr 12910  opprcoppr 13829
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 615  ax-in2 616  ax-io 711  ax-5 1470  ax-7 1471  ax-gen 1472  ax-ie1 1516  ax-ie2 1517  ax-8 1527  ax-10 1528  ax-11 1529  ax-i12 1530  ax-bndl 1532  ax-4 1533  ax-17 1549  ax-i9 1553  ax-ial 1557  ax-i5r 1558  ax-13 2178  ax-14 2179  ax-ext 2187  ax-sep 4162  ax-nul 4170  ax-pow 4218  ax-pr 4253  ax-un 4480  ax-setind 4585  ax-cnex 8016  ax-resscn 8017  ax-1re 8019  ax-addrcl 8022
This theorem depends on definitions:  df-bi 117  df-3an 983  df-tru 1376  df-fal 1379  df-nf 1484  df-sb 1786  df-eu 2057  df-mo 2058  df-clab 2192  df-cleq 2198  df-clel 2201  df-nfc 2337  df-ne 2377  df-ral 2489  df-rex 2490  df-rab 2493  df-v 2774  df-sbc 2999  df-csb 3094  df-dif 3168  df-un 3170  df-in 3172  df-ss 3179  df-nul 3461  df-pw 3618  df-sn 3639  df-pr 3640  df-op 3642  df-uni 3851  df-int 3886  df-br 4045  df-opab 4106  df-mpt 4107  df-id 4340  df-xp 4681  df-rel 4682  df-cnv 4683  df-co 4684  df-dm 4685  df-rn 4686  df-res 4687  df-ima 4688  df-iota 5232  df-fun 5273  df-fn 5274  df-fv 5279  df-ov 5947  df-oprab 5948  df-mpo 5949  df-tpos 6331  df-inn 9037  df-2 9095  df-3 9096  df-ndx 12835  df-slot 12836  df-sets 12839  df-mulr 12923  df-oppr 13830
This theorem is referenced by:  opprrngbg  13840  oppr0g  13843  oppr1g  13844  opprnegg  13845  opprsubgg  13846  crngridl  14292
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