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Mirrors > Home > MPE Home > Th. List > wlklnwwlkln1 | Structured version Visualization version GIF version |
Description: The sequence of vertices in a walk of length 𝑁 is a walk as word of length 𝑁 in a pseudograph. (Contributed by Alexander van der Vekens, 21-Jul-2018.) (Revised by AV, 12-Apr-2021.) |
Ref | Expression |
---|---|
wlklnwwlkln1 | ⊢ (𝐺 ∈ UPGraph → ((𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁) → 𝑃 ∈ (𝑁 WWalksN 𝐺))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wlkcl 27885 | . . . 4 ⊢ (𝐹(Walks‘𝐺)𝑃 → (♯‘𝐹) ∈ ℕ0) | |
2 | 1 | adantr 480 | . . 3 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁) → (♯‘𝐹) ∈ ℕ0) |
3 | wlkiswwlks1 28133 | . . . . . . . 8 ⊢ (𝐺 ∈ UPGraph → (𝐹(Walks‘𝐺)𝑃 → 𝑃 ∈ (WWalks‘𝐺))) | |
4 | 3 | com12 32 | . . . . . . 7 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝐺 ∈ UPGraph → 𝑃 ∈ (WWalks‘𝐺))) |
5 | 4 | ad2antrl 724 | . . . . . 6 ⊢ (((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) → (𝐺 ∈ UPGraph → 𝑃 ∈ (WWalks‘𝐺))) |
6 | 5 | imp 406 | . . . . 5 ⊢ ((((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) ∧ 𝐺 ∈ UPGraph) → 𝑃 ∈ (WWalks‘𝐺)) |
7 | wlklenvp1 27888 | . . . . . . . 8 ⊢ (𝐹(Walks‘𝐺)𝑃 → (♯‘𝑃) = ((♯‘𝐹) + 1)) | |
8 | 7 | ad2antrl 724 | . . . . . . 7 ⊢ (((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) → (♯‘𝑃) = ((♯‘𝐹) + 1)) |
9 | oveq1 7262 | . . . . . . . . 9 ⊢ ((♯‘𝐹) = 𝑁 → ((♯‘𝐹) + 1) = (𝑁 + 1)) | |
10 | 9 | adantl 481 | . . . . . . . 8 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁) → ((♯‘𝐹) + 1) = (𝑁 + 1)) |
11 | 10 | adantl 481 | . . . . . . 7 ⊢ (((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) → ((♯‘𝐹) + 1) = (𝑁 + 1)) |
12 | 8, 11 | eqtrd 2778 | . . . . . 6 ⊢ (((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) → (♯‘𝑃) = (𝑁 + 1)) |
13 | 12 | adantr 480 | . . . . 5 ⊢ ((((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) ∧ 𝐺 ∈ UPGraph) → (♯‘𝑃) = (𝑁 + 1)) |
14 | eleq1 2826 | . . . . . . . . 9 ⊢ ((♯‘𝐹) = 𝑁 → ((♯‘𝐹) ∈ ℕ0 ↔ 𝑁 ∈ ℕ0)) | |
15 | iswwlksn 28104 | . . . . . . . . 9 ⊢ (𝑁 ∈ ℕ0 → (𝑃 ∈ (𝑁 WWalksN 𝐺) ↔ (𝑃 ∈ (WWalks‘𝐺) ∧ (♯‘𝑃) = (𝑁 + 1)))) | |
16 | 14, 15 | syl6bi 252 | . . . . . . . 8 ⊢ ((♯‘𝐹) = 𝑁 → ((♯‘𝐹) ∈ ℕ0 → (𝑃 ∈ (𝑁 WWalksN 𝐺) ↔ (𝑃 ∈ (WWalks‘𝐺) ∧ (♯‘𝑃) = (𝑁 + 1))))) |
17 | 16 | adantl 481 | . . . . . . 7 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁) → ((♯‘𝐹) ∈ ℕ0 → (𝑃 ∈ (𝑁 WWalksN 𝐺) ↔ (𝑃 ∈ (WWalks‘𝐺) ∧ (♯‘𝑃) = (𝑁 + 1))))) |
18 | 17 | impcom 407 | . . . . . 6 ⊢ (((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) → (𝑃 ∈ (𝑁 WWalksN 𝐺) ↔ (𝑃 ∈ (WWalks‘𝐺) ∧ (♯‘𝑃) = (𝑁 + 1)))) |
19 | 18 | adantr 480 | . . . . 5 ⊢ ((((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) ∧ 𝐺 ∈ UPGraph) → (𝑃 ∈ (𝑁 WWalksN 𝐺) ↔ (𝑃 ∈ (WWalks‘𝐺) ∧ (♯‘𝑃) = (𝑁 + 1)))) |
20 | 6, 13, 19 | mpbir2and 709 | . . . 4 ⊢ ((((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) ∧ 𝐺 ∈ UPGraph) → 𝑃 ∈ (𝑁 WWalksN 𝐺)) |
21 | 20 | ex 412 | . . 3 ⊢ (((♯‘𝐹) ∈ ℕ0 ∧ (𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁)) → (𝐺 ∈ UPGraph → 𝑃 ∈ (𝑁 WWalksN 𝐺))) |
22 | 2, 21 | mpancom 684 | . 2 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁) → (𝐺 ∈ UPGraph → 𝑃 ∈ (𝑁 WWalksN 𝐺))) |
23 | 22 | com12 32 | 1 ⊢ (𝐺 ∈ UPGraph → ((𝐹(Walks‘𝐺)𝑃 ∧ (♯‘𝐹) = 𝑁) → 𝑃 ∈ (𝑁 WWalksN 𝐺))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 class class class wbr 5070 ‘cfv 6418 (class class class)co 7255 1c1 10803 + caddc 10805 ℕ0cn0 12163 ♯chash 13972 UPGraphcupgr 27353 Walkscwlks 27866 WWalkscwwlks 28091 WWalksN cwwlksn 28092 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-ifp 1060 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-2o 8268 df-oadd 8271 df-er 8456 df-map 8575 df-pm 8576 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-dju 9590 df-card 9628 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-n0 12164 df-xnn0 12236 df-z 12250 df-uz 12512 df-fz 13169 df-fzo 13312 df-hash 13973 df-word 14146 df-edg 27321 df-uhgr 27331 df-upgr 27355 df-wlks 27869 df-wwlks 28096 df-wwlksn 28097 |
This theorem is referenced by: wlklnwwlkn 28150 wlklnwwlknupgr 28152 |
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