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| Mirrors > Home > MPE Home > Th. List > ricrel | Structured version Visualization version GIF version | ||
| Description: The domain of the ring isomorphism relation is a relation. (Contributed by AV, 24-Jul-2026.) |
| Ref | Expression |
|---|---|
| ricrel | ⊢ Rel ≃𝑟 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ric 20591 | . . 3 ⊢ ≃𝑟 = (◡ RingIso “ (V ∖ 1o)) | |
| 2 | cnvimass 6084 | . . . 4 ⊢ (◡ RingIso “ (V ∖ 1o)) ⊆ dom RingIso | |
| 3 | rimfn 20585 | . . . . 5 ⊢ RingIso Fn (V × V) | |
| 4 | 3 | fndmi 6639 | . . . 4 ⊢ dom RingIso = (V × V) |
| 5 | 2, 4 | sseqtri 3985 | . . 3 ⊢ (◡ RingIso “ (V ∖ 1o)) ⊆ (V × V) |
| 6 | 1, 5 | eqsstri 3983 | . 2 ⊢ ≃𝑟 ⊆ (V × V) |
| 7 | relxp 5679 | . 2 ⊢ Rel (V × V) | |
| 8 | relss 5768 | . 2 ⊢ ( ≃𝑟 ⊆ (V × V) → (Rel (V × V) → Rel ≃𝑟 )) | |
| 9 | 6, 7, 8 | mp2 9 | 1 ⊢ Rel ≃𝑟 |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3455 ∖ cdif 3902 ⊆ wss 3905 × cxp 5659 ◡ccnv 5660 dom cdm 5661 “ cima 5664 Rel wrel 5666 1oc1o 8442 RingIso crs 20548 ≃𝑟 cric 20549 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pr 5404 ax-un 7732 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 df-rim 20551 df-ric 20591 |
| This theorem is referenced by: ricer 20604 |
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