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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 16115 | . 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 5725 | 1 ⊢ (𝑊 ∈ (Walks‘𝐺) → 𝐺 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 if-wif 983 ∧ w3a 1002 = wceq 1395 ∈ wcel 2200 ∀wral 2508 Vcvv 2800 ⊆ wss 3198 {csn 3667 {cpr 3668 {copab 4147 dom cdm 4723 ⟶wf 5320 ‘cfv 5324 (class class class)co 6013 0cc0 8022 1c1 8023 + caddc 8025 ...cfz 10233 ..^cfzo 10367 ♯chash 11027 Word cword 11103 Vtxcvtx 15853 iEdgciedg 15854 Walkscwlks 16114 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-iota 5284 df-fun 5326 df-fv 5332 df-wlks 16115 |
| This theorem is referenced by: wlkv 16123 wlkcompim 16149 wlkeq 16151 |
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