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| Mirrors > Home > ILE Home > Th. List > wlkmex | GIF version | ||
| Description: If there are walks on a graph, the graph is a set. (Contributed by Jim Kingdon, 1-Feb-2026.) |
| Ref | Expression |
|---|---|
| wlkmex | ⊢ (𝑊 ∈ (Walks‘𝐺) → 𝐺 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-wlks 16313 | . 2 ⊢ Walks = (𝑔 ∈ V ↦ {〈𝑓, 𝑝〉 ∣ (𝑓 ∈ Word dom (iEdg‘𝑔) ∧ 𝑝:(0...(♯‘𝑓))⟶(Vtx‘𝑔) ∧ ∀𝑘 ∈ (0..^(♯‘𝑓))if-((𝑝‘𝑘) = (𝑝‘(𝑘 + 1)), ((iEdg‘𝑔)‘(𝑓‘𝑘)) = {(𝑝‘𝑘)}, {(𝑝‘𝑘), (𝑝‘(𝑘 + 1))} ⊆ ((iEdg‘𝑔)‘(𝑓‘𝑘))))}) | |
| 2 | 1 | mptrcl 5760 | 1 ⊢ (𝑊 ∈ (Walks‘𝐺) → 𝐺 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 if-wif 986 ∧ w3a 1005 = wceq 1398 ∈ wcel 2203 ∀wral 2520 Vcvv 2813 ⊆ wss 3211 {csn 3689 {cpr 3690 {copab 4170 dom cdm 4749 ⟶wf 5348 ‘cfv 5352 (class class class)co 6050 0cc0 8127 1c1 8128 + caddc 8130 ...cfz 10342 ..^cfzo 10476 ♯chash 11138 Word cword 11224 Vtxcvtx 16007 iEdgciedg 16008 Walkscwlks 16312 |
| 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-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-opab 4172 df-mpt 4173 df-id 4414 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-rn 4760 df-res 4761 df-ima 4762 df-iota 5312 df-fun 5354 df-fv 5360 df-wlks 16313 |
| This theorem is referenced by: wlkv 16321 wlkcompim 16347 wlkeq 16349 |
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