ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  oppr1g GIF version

Theorem oppr1g 14060
Description: Multiplicative identity of an opposite ring. (Contributed by Mario Carneiro, 1-Dec-2014.)
Hypotheses
Ref Expression
opprbas.1 𝑂 = (oppr𝑅)
oppr1.2 1 = (1r𝑅)
Assertion
Ref Expression
oppr1g (𝑅𝑉1 = (1r𝑂))

Proof of Theorem oppr1g
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2229 . . . . . . . . . . 11 (Base‘𝑅) = (Base‘𝑅)
2 eqid 2229 . . . . . . . . . . 11 (.r𝑅) = (.r𝑅)
3 opprbas.1 . . . . . . . . . . 11 𝑂 = (oppr𝑅)
4 eqid 2229 . . . . . . . . . . 11 (.r𝑂) = (.r𝑂)
51, 2, 3, 4opprmulg 14049 . . . . . . . . . 10 ((𝑅𝑉𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)𝑦) = (𝑦(.r𝑅)𝑥))
653expa 1227 . . . . . . . . 9 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)𝑦) = (𝑦(.r𝑅)𝑥))
76eqeq1d 2238 . . . . . . . 8 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → ((𝑥(.r𝑂)𝑦) = 𝑦 ↔ (𝑦(.r𝑅)𝑥) = 𝑦))
8 simpll 527 . . . . . . . . . 10 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑅𝑉)
9 simpr 110 . . . . . . . . . 10 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑦 ∈ (Base‘𝑅))
10 simplr 528 . . . . . . . . . 10 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑥 ∈ (Base‘𝑅))
111, 2, 3, 4opprmulg 14049 . . . . . . . . . 10 ((𝑅𝑉𝑦 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑦(.r𝑂)𝑥) = (𝑥(.r𝑅)𝑦))
128, 9, 10, 11syl3anc 1271 . . . . . . . . 9 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑦(.r𝑂)𝑥) = (𝑥(.r𝑅)𝑦))
1312eqeq1d 2238 . . . . . . . 8 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → ((𝑦(.r𝑂)𝑥) = 𝑦 ↔ (𝑥(.r𝑅)𝑦) = 𝑦))
147, 13anbi12d 473 . . . . . . 7 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦) ↔ ((𝑦(.r𝑅)𝑥) = 𝑦 ∧ (𝑥(.r𝑅)𝑦) = 𝑦)))
1514biancomd 271 . . . . . 6 (((𝑅𝑉𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦) ↔ ((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦)))
1615ralbidva 2526 . . . . 5 ((𝑅𝑉𝑥 ∈ (Base‘𝑅)) → (∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦) ↔ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦)))
1716riotabidva 5978 . . . 4 (𝑅𝑉 → (𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦)) = (𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦)))
18 df-riota 5960 . . . 4 (𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦)) = (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦)))
19 df-riota 5960 . . . 4 (𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦)) = (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦)))
2017, 18, 193eqtr3g 2285 . . 3 (𝑅𝑉 → (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦))) = (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦))))
213opprex 14051 . . . . 5 (𝑅𝑉𝑂 ∈ V)
22 eqid 2229 . . . . . 6 (mulGrp‘𝑂) = (mulGrp‘𝑂)
2322mgpex 13903 . . . . 5 (𝑂 ∈ V → (mulGrp‘𝑂) ∈ V)
24 eqid 2229 . . . . . 6 (Base‘(mulGrp‘𝑂)) = (Base‘(mulGrp‘𝑂))
25 eqid 2229 . . . . . 6 (+g‘(mulGrp‘𝑂)) = (+g‘(mulGrp‘𝑂))
26 eqid 2229 . . . . . 6 (0g‘(mulGrp‘𝑂)) = (0g‘(mulGrp‘𝑂))
2724, 25, 26grpidvalg 13421 . . . . 5 ((mulGrp‘𝑂) ∈ V → (0g‘(mulGrp‘𝑂)) = (℩𝑥(𝑥 ∈ (Base‘(mulGrp‘𝑂)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑂))((𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦))))
2821, 23, 273syl 17 . . . 4 (𝑅𝑉 → (0g‘(mulGrp‘𝑂)) = (℩𝑥(𝑥 ∈ (Base‘(mulGrp‘𝑂)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑂))((𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦))))
293, 1opprbasg 14053 . . . . . . . 8 (𝑅𝑉 → (Base‘𝑅) = (Base‘𝑂))
30 eqid 2229 . . . . . . . . . 10 (Base‘𝑂) = (Base‘𝑂)
3122, 30mgpbasg 13904 . . . . . . . . 9 (𝑂 ∈ V → (Base‘𝑂) = (Base‘(mulGrp‘𝑂)))
3221, 31syl 14 . . . . . . . 8 (𝑅𝑉 → (Base‘𝑂) = (Base‘(mulGrp‘𝑂)))
3329, 32eqtrd 2262 . . . . . . 7 (𝑅𝑉 → (Base‘𝑅) = (Base‘(mulGrp‘𝑂)))
3433eleq2d 2299 . . . . . 6 (𝑅𝑉 → (𝑥 ∈ (Base‘𝑅) ↔ 𝑥 ∈ (Base‘(mulGrp‘𝑂))))
3522, 4mgpplusgg 13902 . . . . . . . . . . 11 (𝑂 ∈ V → (.r𝑂) = (+g‘(mulGrp‘𝑂)))
3621, 35syl 14 . . . . . . . . . 10 (𝑅𝑉 → (.r𝑂) = (+g‘(mulGrp‘𝑂)))
3736oveqd 6024 . . . . . . . . 9 (𝑅𝑉 → (𝑥(.r𝑂)𝑦) = (𝑥(+g‘(mulGrp‘𝑂))𝑦))
3837eqeq1d 2238 . . . . . . . 8 (𝑅𝑉 → ((𝑥(.r𝑂)𝑦) = 𝑦 ↔ (𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦))
3936oveqd 6024 . . . . . . . . 9 (𝑅𝑉 → (𝑦(.r𝑂)𝑥) = (𝑦(+g‘(mulGrp‘𝑂))𝑥))
4039eqeq1d 2238 . . . . . . . 8 (𝑅𝑉 → ((𝑦(.r𝑂)𝑥) = 𝑦 ↔ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦))
4138, 40anbi12d 473 . . . . . . 7 (𝑅𝑉 → (((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦) ↔ ((𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦)))
4233, 41raleqbidv 2744 . . . . . 6 (𝑅𝑉 → (∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦) ↔ ∀𝑦 ∈ (Base‘(mulGrp‘𝑂))((𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦)))
4334, 42anbi12d 473 . . . . 5 (𝑅𝑉 → ((𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦)) ↔ (𝑥 ∈ (Base‘(mulGrp‘𝑂)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑂))((𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦))))
4443iotabidv 5301 . . . 4 (𝑅𝑉 → (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦))) = (℩𝑥(𝑥 ∈ (Base‘(mulGrp‘𝑂)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑂))((𝑥(+g‘(mulGrp‘𝑂))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑂))𝑥) = 𝑦))))
4528, 44eqtr4d 2265 . . 3 (𝑅𝑉 → (0g‘(mulGrp‘𝑂)) = (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑂)𝑦) = 𝑦 ∧ (𝑦(.r𝑂)𝑥) = 𝑦))))
46 eqid 2229 . . . . . 6 (mulGrp‘𝑅) = (mulGrp‘𝑅)
4746mgpex 13903 . . . . 5 (𝑅𝑉 → (mulGrp‘𝑅) ∈ V)
48 eqid 2229 . . . . . 6 (Base‘(mulGrp‘𝑅)) = (Base‘(mulGrp‘𝑅))
49 eqid 2229 . . . . . 6 (+g‘(mulGrp‘𝑅)) = (+g‘(mulGrp‘𝑅))
50 eqid 2229 . . . . . 6 (0g‘(mulGrp‘𝑅)) = (0g‘(mulGrp‘𝑅))
5148, 49, 50grpidvalg 13421 . . . . 5 ((mulGrp‘𝑅) ∈ V → (0g‘(mulGrp‘𝑅)) = (℩𝑥(𝑥 ∈ (Base‘(mulGrp‘𝑅)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑅))((𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦))))
5247, 51syl 14 . . . 4 (𝑅𝑉 → (0g‘(mulGrp‘𝑅)) = (℩𝑥(𝑥 ∈ (Base‘(mulGrp‘𝑅)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑅))((𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦))))
5346, 1mgpbasg 13904 . . . . . . 7 (𝑅𝑉 → (Base‘𝑅) = (Base‘(mulGrp‘𝑅)))
5453eleq2d 2299 . . . . . 6 (𝑅𝑉 → (𝑥 ∈ (Base‘𝑅) ↔ 𝑥 ∈ (Base‘(mulGrp‘𝑅))))
5546, 2mgpplusgg 13902 . . . . . . . . . 10 (𝑅𝑉 → (.r𝑅) = (+g‘(mulGrp‘𝑅)))
5655oveqd 6024 . . . . . . . . 9 (𝑅𝑉 → (𝑥(.r𝑅)𝑦) = (𝑥(+g‘(mulGrp‘𝑅))𝑦))
5756eqeq1d 2238 . . . . . . . 8 (𝑅𝑉 → ((𝑥(.r𝑅)𝑦) = 𝑦 ↔ (𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦))
5855oveqd 6024 . . . . . . . . 9 (𝑅𝑉 → (𝑦(.r𝑅)𝑥) = (𝑦(+g‘(mulGrp‘𝑅))𝑥))
5958eqeq1d 2238 . . . . . . . 8 (𝑅𝑉 → ((𝑦(.r𝑅)𝑥) = 𝑦 ↔ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦))
6057, 59anbi12d 473 . . . . . . 7 (𝑅𝑉 → (((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦) ↔ ((𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦)))
6153, 60raleqbidv 2744 . . . . . 6 (𝑅𝑉 → (∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦) ↔ ∀𝑦 ∈ (Base‘(mulGrp‘𝑅))((𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦)))
6254, 61anbi12d 473 . . . . 5 (𝑅𝑉 → ((𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦)) ↔ (𝑥 ∈ (Base‘(mulGrp‘𝑅)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑅))((𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦))))
6362iotabidv 5301 . . . 4 (𝑅𝑉 → (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦))) = (℩𝑥(𝑥 ∈ (Base‘(mulGrp‘𝑅)) ∧ ∀𝑦 ∈ (Base‘(mulGrp‘𝑅))((𝑥(+g‘(mulGrp‘𝑅))𝑦) = 𝑦 ∧ (𝑦(+g‘(mulGrp‘𝑅))𝑥) = 𝑦))))
6452, 63eqtr4d 2265 . . 3 (𝑅𝑉 → (0g‘(mulGrp‘𝑅)) = (℩𝑥(𝑥 ∈ (Base‘𝑅) ∧ ∀𝑦 ∈ (Base‘𝑅)((𝑥(.r𝑅)𝑦) = 𝑦 ∧ (𝑦(.r𝑅)𝑥) = 𝑦))))
6520, 45, 643eqtr4d 2272 . 2 (𝑅𝑉 → (0g‘(mulGrp‘𝑂)) = (0g‘(mulGrp‘𝑅)))
66 eqid 2229 . . . 4 (1r𝑂) = (1r𝑂)
6722, 66ringidvalg 13939 . . 3 (𝑂 ∈ V → (1r𝑂) = (0g‘(mulGrp‘𝑂)))
6821, 67syl 14 . 2 (𝑅𝑉 → (1r𝑂) = (0g‘(mulGrp‘𝑂)))
69 oppr1.2 . . 3 1 = (1r𝑅)
7046, 69ringidvalg 13939 . 2 (𝑅𝑉1 = (0g‘(mulGrp‘𝑅)))
7165, 68, 703eqtr4rd 2273 1 (𝑅𝑉1 = (1r𝑂))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1395  wcel 2200  wral 2508  Vcvv 2799  cio 5276  cfv 5318  crio 5959  (class class class)co 6007  Basecbs 13047  +gcplusg 13125  .rcmulr 13126  0gc0g 13304  mulGrpcmgp 13898  1rcur 13937  opprcoppr 14045
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 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4202  ax-nul 4210  ax-pow 4258  ax-pr 4293  ax-un 4524  ax-setind 4629  ax-cnex 8101  ax-resscn 8102  ax-1cn 8103  ax-1re 8104  ax-icn 8105  ax-addcl 8106  ax-addrcl 8107  ax-mulcl 8108  ax-addcom 8110  ax-addass 8112  ax-i2m1 8115  ax-0lt1 8116  ax-0id 8118  ax-rnegex 8119  ax-pre-ltirr 8122  ax-pre-lttrn 8124  ax-pre-ltadd 8126
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-int 3924  df-br 4084  df-opab 4146  df-mpt 4147  df-id 4384  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-rn 4730  df-res 4731  df-ima 4732  df-iota 5278  df-fun 5320  df-fn 5321  df-fv 5326  df-riota 5960  df-ov 6010  df-oprab 6011  df-mpo 6012  df-tpos 6397  df-pnf 8194  df-mnf 8195  df-ltxr 8197  df-inn 9122  df-2 9180  df-3 9181  df-ndx 13050  df-slot 13051  df-base 13053  df-sets 13054  df-plusg 13138  df-mulr 13139  df-0g 13306  df-mgp 13899  df-ur 13938  df-oppr 14046
This theorem is referenced by:  opprunitd  14089  rhmopp  14155  opprnzrbg  14164
  Copyright terms: Public domain W3C validator