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Theorem opprringb 14327
Description: Bidirectional form of opprring 14325. (Contributed by Mario Carneiro, 6-Dec-2014.)
Hypothesis
Ref Expression
opprbas.1  |-  O  =  (oppr
`  R )
Assertion
Ref Expression
opprringb  |-  ( R  e.  Ring  <->  O  e.  Ring )

Proof of Theorem opprringb
Dummy variable  j is distinct from all other variables.
StepHypRef Expression
1 elex 2827 . 2  |-  ( R  e.  Ring  ->  R  e. 
_V )
2 eqid 2234 . . . . 5  |-  ( Base `  O )  =  (
Base `  O )
3 eqid 2234 . . . . 5  |-  ( 1r
`  O )  =  ( 1r `  O
)
42, 3ringidcl 14266 . . . 4  |-  ( O  e.  Ring  ->  ( 1r
`  O )  e.  ( Base `  O
) )
52basm 13361 . . . 4  |-  ( ( 1r `  O )  e.  ( Base `  O
)  ->  E. j 
j  e.  O )
64, 5syl 14 . . 3  |-  ( O  e.  Ring  ->  E. j 
j  e.  O )
7 mptrel 4888 . . . . . 6  |-  Rel  (
f  e.  _V  |->  ( f sSet  <. ( .r `  ndx ) , tpos  ( .r
`  f ) >.
) )
8 df-oppr 14314 . . . . . . 7  |- oppr  =  ( f  e.  _V  |->  ( f sSet  <. ( .r `  ndx ) , tpos  ( .r `  f
) >. ) )
98releqi 4838 . . . . . 6  |-  ( Rel oppr  <->  Rel  ( f  e.  _V  |->  ( f sSet  <. ( .r `  ndx ) , tpos  ( .r `  f ) >. )
) )
107, 9mpbir 146 . . . . 5  |-  Rel oppr
11 opprbas.1 . . . . . . . 8  |-  O  =  (oppr
`  R )
1211eleq2i 2301 . . . . . . 7  |-  ( j  e.  O  <->  j  e.  (oppr `  R ) )
1312biimpi 120 . . . . . 6  |-  ( j  e.  O  ->  j  e.  (oppr
`  R ) )
1413adantl 277 . . . . 5  |-  ( ( O  e.  Ring  /\  j  e.  O )  ->  j  e.  (oppr
`  R ) )
15 relelfvdm 5707 . . . . 5  |-  ( ( Rel oppr  /\  j  e.  (oppr `  R
) )  ->  R  e.  dom oppr )
1610, 14, 15sylancr 414 . . . 4  |-  ( ( O  e.  Ring  /\  j  e.  O )  ->  R  e.  dom oppr )
1716elexd 2829 . . 3  |-  ( ( O  e.  Ring  /\  j  e.  O )  ->  R  e.  _V )
186, 17exlimddv 1950 . 2  |-  ( O  e.  Ring  ->  R  e. 
_V )
1911opprringbg 14326 . 2  |-  ( R  e.  _V  ->  ( R  e.  Ring  <->  O  e.  Ring ) )
201, 18, 19pm5.21nii 712 1  |-  ( R  e.  Ring  <->  O  e.  Ring )
Colors of variables: wff set class
Syntax hints:    /\ wa 104    <-> wb 105    = wceq 1398   E.wex 1541    e. wcel 2205   _Vcvv 2815   <.cop 3697    |-> cmpt 4176   dom cdm 4754   Rel wrel 4759   ` cfv 5357  (class class class)co 6058  tpos ctpos 6488   ndxcnx 13296   sSet csts 13297   Basecbs 13299   .rcmulr 13378   1rcur 14205   Ringcrg 14242  opprcoppr 14313
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 2207  ax-14 2208  ax-ext 2216  ax-sep 4233  ax-nul 4241  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-setind 4664  ax-cnex 8234  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-addcom 8243  ax-addass 8245  ax-i2m1 8248  ax-0lt1 8249  ax-0id 8251  ax-rnegex 8252  ax-pre-ltirr 8255  ax-pre-lttrn 8257  ax-pre-ltadd 8259
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 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-nel 2510  df-ral 2527  df-rex 2528  df-reu 2529  df-rmo 2530  df-rab 2531  df-v 2817  df-sbc 3046  df-csb 3142  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-nul 3513  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-int 3955  df-br 4115  df-opab 4177  df-mpt 4178  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-res 4766  df-ima 4767  df-iota 5317  df-fun 5359  df-fn 5360  df-fv 5365  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-tpos 6489  df-pnf 8326  df-mnf 8327  df-ltxr 8329  df-inn 9258  df-2 9316  df-3 9317  df-ndx 13302  df-slot 13303  df-base 13305  df-sets 13306  df-plusg 13390  df-mulr 13391  df-0g 13558  df-mgm 13622  df-sgrp 13668  df-mnd 13681  df-grp 13761  df-mgp 14163  df-ur 14206  df-ring 14244  df-oppr 14314
This theorem is referenced by:  opprlring  14445  opprdrng  14561
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