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| Mirrors > Home > ILE Home > Th. List > opprringb | GIF version | ||
| Description: Bidirectional form of opprring 14468. (Contributed by Mario Carneiro, 6-Dec-2014.) |
| Ref | Expression |
|---|---|
| opprbas.1 | ⊢ 𝑂 = (oppr‘𝑅) |
| Ref | Expression |
|---|---|
| opprringb | ⊢ (𝑅 ∈ Ring ↔ 𝑂 ∈ Ring) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 2833 | . 2 ⊢ (𝑅 ∈ Ring → 𝑅 ∈ V) | |
| 2 | eqid 2238 | . . . . 5 ⊢ (Base‘𝑂) = (Base‘𝑂) | |
| 3 | eqid 2238 | . . . . 5 ⊢ (1r‘𝑂) = (1r‘𝑂) | |
| 4 | 2, 3 | ringidcl 14409 | . . . 4 ⊢ (𝑂 ∈ Ring → (1r‘𝑂) ∈ (Base‘𝑂)) |
| 5 | 2 | basm 13466 | . . . 4 ⊢ ((1r‘𝑂) ∈ (Base‘𝑂) → ∃𝑗 𝑗 ∈ 𝑂) |
| 6 | 4, 5 | syl 14 | . . 3 ⊢ (𝑂 ∈ Ring → ∃𝑗 𝑗 ∈ 𝑂) |
| 7 | mptrel 4908 | . . . . . 6 ⊢ Rel (𝑓 ∈ V ↦ (𝑓 sSet 〈(.r‘ndx), tpos (.r‘𝑓)〉)) | |
| 8 | df-oppr 14457 | . . . . . . 7 ⊢ oppr = (𝑓 ∈ V ↦ (𝑓 sSet 〈(.r‘ndx), tpos (.r‘𝑓)〉)) | |
| 9 | 8 | releqi 4858 | . . . . . 6 ⊢ (Rel oppr ↔ Rel (𝑓 ∈ V ↦ (𝑓 sSet 〈(.r‘ndx), tpos (.r‘𝑓)〉))) |
| 10 | 7, 9 | mpbir 146 | . . . . 5 ⊢ Rel oppr |
| 11 | opprbas.1 | . . . . . . . 8 ⊢ 𝑂 = (oppr‘𝑅) | |
| 12 | 11 | eleq2i 2305 | . . . . . . 7 ⊢ (𝑗 ∈ 𝑂 ↔ 𝑗 ∈ (oppr‘𝑅)) |
| 13 | 12 | biimpi 120 | . . . . . 6 ⊢ (𝑗 ∈ 𝑂 → 𝑗 ∈ (oppr‘𝑅)) |
| 14 | 13 | adantl 277 | . . . . 5 ⊢ ((𝑂 ∈ Ring ∧ 𝑗 ∈ 𝑂) → 𝑗 ∈ (oppr‘𝑅)) |
| 15 | relelfvdm 5727 | . . . . 5 ⊢ ((Rel oppr ∧ 𝑗 ∈ (oppr‘𝑅)) → 𝑅 ∈ dom oppr) | |
| 16 | 10, 14, 15 | sylancr 418 | . . . 4 ⊢ ((𝑂 ∈ Ring ∧ 𝑗 ∈ 𝑂) → 𝑅 ∈ dom oppr) |
| 17 | 16 | elexd 2835 | . . 3 ⊢ ((𝑂 ∈ Ring ∧ 𝑗 ∈ 𝑂) → 𝑅 ∈ V) |
| 18 | 6, 17 | exlimddv 1954 | . 2 ⊢ (𝑂 ∈ Ring → 𝑅 ∈ V) |
| 19 | 11 | opprringbg 14469 | . 2 ⊢ (𝑅 ∈ V → (𝑅 ∈ Ring ↔ 𝑂 ∈ Ring)) |
| 20 | 1, 18, 19 | pm5.21nii 716 | 1 ⊢ (𝑅 ∈ Ring ↔ 𝑂 ∈ Ring) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∧ wa 104 ↔ wb 105 = wceq 1402 ∃wex 1545 ∈ wcel 2209 Vcvv 2821 〈cop 3712 ↦ cmpt 4192 dom cdm 4774 Rel wrel 4779 ‘cfv 5377 (class class class)co 6085 tpos ctpos 6515 ndxcnx 13401 sSet csts 13402 Basecbs 13404 .rcmulr 13485 1rcur 14346 Ringcrg 14384 opprcoppr 14456 |
| 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 4249 ax-nul 4259 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8271 ax-resscn 8272 ax-1cn 8273 ax-1re 8274 ax-icn 8275 ax-addcl 8276 ax-addrcl 8277 ax-mulcl 8278 ax-addcom 8280 ax-addass 8282 ax-i2m1 8285 ax-0lt1 8286 ax-0id 8288 ax-rnegex 8289 ax-pre-ltirr 8292 ax-pre-lttrn 8294 ax-pre-ltadd 8296 |
| 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-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 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 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 df-iota 5337 df-fun 5379 df-fn 5380 df-fv 5385 df-riota 6038 df-ov 6088 df-oprab 6089 df-mpo 6090 df-tpos 6516 df-pnf 8363 df-mnf 8364 df-ltxr 8366 df-inn 9308 df-2 9366 df-3 9367 df-ndx 13407 df-slot 13408 df-base 13410 df-sets 13411 df-plusg 13497 df-mulr 13498 df-0g 13665 df-mgm 13729 df-sgrp 13770 df-mnd 13783 df-grp 13861 df-mgp 14302 df-ur 14347 df-ring 14386 df-oppr 14457 |
| This theorem is used by: opprlring 14588 opprdrng 14704 |
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