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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 48463 | . . 3 ⊢ ≃𝑔𝑟 = (◡ GraphIso “ (V ∖ 1o)) | |
| 2 | cnvimass 6066 | . . . 4 ⊢ (◡ GraphIso “ (V ∖ 1o)) ⊆ dom GraphIso | |
| 3 | grimfn 48461 | . . . . 5 ⊢ GraphIso Fn (V × V) | |
| 4 | 3 | fndmi 6619 | . . . 4 ⊢ dom GraphIso = (V × V) |
| 5 | 2, 4 | sseqtri 3982 | . . 3 ⊢ (◡ GraphIso “ (V ∖ 1o)) ⊆ (V × V) |
| 6 | 1, 5 | eqsstri 3980 | . 2 ⊢ ≃𝑔𝑟 ⊆ (V × V) |
| 7 | relxp 5661 | . 2 ⊢ Rel (V × V) | |
| 8 | relss 5750 | . 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 3453 ∖ cdif 3899 ⊆ wss 3902 × cxp 5641 ◡ccnv 5642 dom cdm 5643 “ cima 5646 Rel wrel 5648 1oc1o 8423 GraphIso cgrim 48457 ≃𝑔𝑟 cgric 48458 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7712 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5538 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-f1o 6522 df-fv 6523 df-ov 7393 df-oprab 7394 df-mpo 7395 df-1st 7964 df-2nd 7965 df-map 8803 df-grim 48460 df-gric 48463 |
| This theorem is referenced by: (None) |
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