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Theorem opprbasg 14107
Description: Base set of an opposite ring. (Contributed by Mario Carneiro, 1-Dec-2014.) (Proof shortened by AV, 6-Nov-2024.)
Hypotheses
Ref Expression
opprbas.1  |-  O  =  (oppr
`  R )
opprbas.2  |-  B  =  ( Base `  R
)
Assertion
Ref Expression
opprbasg  |-  ( R  e.  V  ->  B  =  ( Base `  O
) )

Proof of Theorem opprbasg
StepHypRef Expression
1 opprbas.2 . 2  |-  B  =  ( Base `  R
)
2 opprbas.1 . . 3  |-  O  =  (oppr
`  R )
3 baseslid 13158 . . 3  |-  ( Base 
= Slot  ( Base `  ndx )  /\  ( Base `  ndx )  e.  NN )
4 basendxnmulrndx 13235 . . 3  |-  ( Base `  ndx )  =/=  ( .r `  ndx )
52, 3, 4opprsllem 14106 . 2  |-  ( R  e.  V  ->  ( Base `  R )  =  ( Base `  O
) )
61, 5eqtrid 2276 1  |-  ( R  e.  V  ->  B  =  ( Base `  O
) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1397    e. wcel 2202   ` cfv 5326   Basecbs 13100  opprcoppr 14099
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-nul 4215  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8123  ax-resscn 8124  ax-1cn 8125  ax-1re 8126  ax-icn 8127  ax-addcl 8128  ax-addrcl 8129  ax-mulcl 8130  ax-addcom 8132  ax-addass 8134  ax-i2m1 8137  ax-0lt1 8138  ax-0id 8140  ax-rnegex 8141  ax-pre-ltirr 8144  ax-pre-lttrn 8146  ax-pre-ltadd 8148
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-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-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-fv 5334  df-ov 6021  df-oprab 6022  df-mpo 6023  df-tpos 6411  df-pnf 8216  df-mnf 8217  df-ltxr 8219  df-inn 9144  df-2 9202  df-3 9203  df-ndx 13103  df-slot 13104  df-base 13106  df-sets 13107  df-mulr 13192  df-oppr 14100
This theorem is referenced by:  opprrng  14109  opprrngbg  14110  opprring  14111  opprringbg  14112  oppr0g  14113  oppr1g  14114  opprnegg  14115  opprsubgg  14116  mulgass3  14117  1unit  14140  opprunitd  14143  crngunit  14144  unitmulcl  14146  unitgrp  14149  unitnegcl  14163  unitpropdg  14181  rhmopp  14209  elrhmunit  14210  subrguss  14269  subrgunit  14272  opprdomnbg  14307  isridlrng  14515  isridl  14537  ridl1  14544  2idlcpblrng  14556  crngridl  14563
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