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| Mirrors > Home > ILE Home > Th. List > basvtxval2dom | GIF version | ||
| Description: The set of vertices of a graph represented as an extensible structure with the set of vertices as base set. (Contributed by AV, 14-Oct-2020.) (Revised by AV, 12-Nov-2021.) |
| Ref | Expression |
|---|---|
| basvtxval.s | ⊢ (𝜑 → 𝐺 Struct 𝑋) |
| basvtxval2dom.d | ⊢ (𝜑 → 2o ≼ dom 𝐺) |
| basvtxval.v | ⊢ (𝜑 → 𝑉 ∈ 𝑌) |
| basvtxval.b | ⊢ (𝜑 → 〈(Base‘ndx), 𝑉〉 ∈ 𝐺) |
| Ref | Expression |
|---|---|
| basvtxval2dom | ⊢ (𝜑 → (Vtx‘𝐺) = 𝑉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | basvtxval.s | . . . 4 ⊢ (𝜑 → 𝐺 Struct 𝑋) | |
| 2 | structex 13093 | . . . 4 ⊢ (𝐺 Struct 𝑋 → 𝐺 ∈ V) | |
| 3 | 1, 2 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ V) |
| 4 | structn0fun 13094 | . . . 4 ⊢ (𝐺 Struct 𝑋 → Fun (𝐺 ∖ {∅})) | |
| 5 | 1, 4 | syl 14 | . . 3 ⊢ (𝜑 → Fun (𝐺 ∖ {∅})) |
| 6 | basvtxval2dom.d | . . 3 ⊢ (𝜑 → 2o ≼ dom 𝐺) | |
| 7 | funvtxdm2domval 15879 | . . 3 ⊢ ((𝐺 ∈ V ∧ Fun (𝐺 ∖ {∅}) ∧ 2o ≼ dom 𝐺) → (Vtx‘𝐺) = (Base‘𝐺)) | |
| 8 | 3, 5, 6, 7 | syl3anc 1273 | . 2 ⊢ (𝜑 → (Vtx‘𝐺) = (Base‘𝐺)) |
| 9 | basvtxval.v | . . 3 ⊢ (𝜑 → 𝑉 ∈ 𝑌) | |
| 10 | basvtxval.b | . . 3 ⊢ (𝜑 → 〈(Base‘ndx), 𝑉〉 ∈ 𝐺) | |
| 11 | 1, 9, 10 | opelstrbas 13197 | . 2 ⊢ (𝜑 → 𝑉 = (Base‘𝐺)) |
| 12 | 8, 11 | eqtr4d 2267 | 1 ⊢ (𝜑 → (Vtx‘𝐺) = 𝑉) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∈ wcel 2202 Vcvv 2802 ∖ cdif 3197 ∅c0 3494 {csn 3669 〈cop 3672 class class class wbr 4088 dom cdm 4725 Fun wfun 5320 ‘cfv 5326 2oc2o 6575 ≼ cdom 6907 Struct cstr 13077 ndxcnx 13078 Basecbs 13081 Vtxcvtx 15862 |
| 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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-nul 4215 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-cnex 8122 ax-resscn 8123 ax-1re 8125 ax-addrcl 8128 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-if 3606 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-suc 4468 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-fv 5334 df-1st 6302 df-1o 6581 df-2o 6582 df-dom 6910 df-inn 9143 df-struct 13083 df-ndx 13084 df-slot 13085 df-base 13087 df-vtx 15864 |
| This theorem is referenced by: structvtxval 15889 structgrssvtx 15892 |
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