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| Mirrors > Home > MPE Home > Th. List > Mathboxes > gricrel | Structured version Visualization version GIF version | ||
| Description: The "is isomorphic to" relation for graphs is a relation. (Contributed by AV, 11-Nov-2022.) (Revised by AV, 5-May-2025.) |
| Ref | Expression |
|---|---|
| gricrel | ⊢ Rel ≃𝑔𝑟 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-gric 48502 | . . 3 ⊢ ≃𝑔𝑟 = (◡ GraphIso “ (V ∖ 1o)) | |
| 2 | cnvimass 6074 | . . . 4 ⊢ (◡ GraphIso “ (V ∖ 1o)) ⊆ dom GraphIso | |
| 3 | grimfn 48500 | . . . . 5 ⊢ GraphIso Fn (V × V) | |
| 4 | 3 | fndmi 6629 | . . . 4 ⊢ dom GraphIso = (V × V) |
| 5 | 2, 4 | sseqtri 3987 | . . 3 ⊢ (◡ GraphIso “ (V ∖ 1o)) ⊆ (V × V) |
| 6 | 1, 5 | eqsstri 3985 | . 2 ⊢ ≃𝑔𝑟 ⊆ (V × V) |
| 7 | relxp 5669 | . 2 ⊢ Rel (V × V) | |
| 8 | relss 5758 | . 2 ⊢ ( ≃𝑔𝑟 ⊆ (V × V) → (Rel (V × V) → Rel ≃𝑔𝑟 )) | |
| 9 | 6, 7, 8 | mp2 9 | 1 ⊢ Rel ≃𝑔𝑟 |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3457 ∖ cdif 3904 ⊆ wss 3907 × cxp 5649 ◡ccnv 5650 dom cdm 5651 “ cima 5654 Rel wrel 5656 1oc1o 8434 GraphIso cgrim 48496 ≃𝑔𝑟 cgric 48497 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-iun 4953 df-br 5105 df-opab 5167 df-mpt 5186 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-f1o 6532 df-fv 6533 df-ov 7403 df-oprab 7404 df-mpo 7405 df-1st 7974 df-2nd 7975 df-map 8814 df-grim 48499 df-gric 48502 |
| This theorem is referenced by: (None) |
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