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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 16439 | . 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 5765 | 1 ⊢ (𝑊 ∈ (Walks‘𝐺) → 𝐺 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 if-wif 986 ∧ w3a 1005 = wceq 1398 ∈ wcel 2205 ∀wral 2522 Vcvv 2815 ⊆ wss 3214 {csn 3694 {cpr 3695 {copab 4175 dom cdm 4754 ⟶wf 5353 ‘cfv 5357 (class class class)co 6058 0cc0 8143 1c1 8144 + caddc 8146 ...cfz 10361 ..^cfzo 10498 ♯chash 11163 Word cword 11249 Vtxcvtx 16133 iEdgciedg 16134 Walkscwlks 16438 |
| 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 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 df-iota 5317 df-fun 5359 df-fv 5365 df-wlks 16439 |
| This theorem is referenced by: wlkv 16447 wlkcompim 16473 wlkeq 16475 |
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