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| Mirrors > Home > MPE Home > Th. List > wlkcl | Structured version Visualization version GIF version | ||
| Description: A walk has length ♯(𝐹), which is an integer. Formerly proven for an Eulerian path, see eupthcl 30268. (Contributed by Mario Carneiro, 12-Mar-2015.) (Revised by AV, 18-Feb-2021.) |
| Ref | Expression |
|---|---|
| wlkcl | ⊢ (𝐹(Walks‘𝐺)𝑃 → (♯‘𝐹) ∈ ℕ0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2735 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
| 2 | 1 | wlkf 29671 | . 2 ⊢ (𝐹(Walks‘𝐺)𝑃 → 𝐹 ∈ Word dom (iEdg‘𝐺)) |
| 3 | lencl 14484 | . 2 ⊢ (𝐹 ∈ Word dom (iEdg‘𝐺) → (♯‘𝐹) ∈ ℕ0) | |
| 4 | 2, 3 | syl 17 | 1 ⊢ (𝐹(Walks‘𝐺)𝑃 → (♯‘𝐹) ∈ ℕ0) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 class class class wbr 5074 dom cdm 5620 ‘cfv 6487 ℕ0cn0 12426 ♯chash 14281 Word cword 14464 iEdgciedg 29054 Walkscwlks 29653 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-ifp 1064 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-int 4880 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-er 8632 df-map 8764 df-en 8883 df-dom 8884 df-sdom 8885 df-fin 8886 df-card 9852 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12164 df-n0 12427 df-z 12514 df-uz 12778 df-fz 13451 df-fzo 13598 df-hash 14282 df-word 14465 df-wlks 29656 |
| This theorem is referenced by: wlklenvp1 29675 wlkn0 29677 wlklenvm1 29678 uspgr2wlkeqi 29704 wlklenvclwlk 29710 wlkepvtx 29715 wlkonwlk1l 29718 wlkonl1iedg 29720 redwlk 29727 wlkp1lem1 29728 wlkp1lem7 29734 wlkp1 29736 pthdadjvtx 29784 dfpth2 29785 spthdep 29790 pthdepisspth 29791 spthonepeq 29808 cyclnumvtx 29856 crctcshlem1 29873 wlklnwwlkln1 29924 wlknwwlksnbij 29944 clwlkclwwlkflem 30062 eupthcl 30268 eupthp1 30274 eupth2lem3 30294 eupth2lems 30296 eupth2 30297 eucrct2eupth1 30302 revwlk 35295 pthhashvtx 35298 usgrgt2cycl 35300 usgrcyclgt2v 35301 acycgr1v 35319 upgrimpthslem2 48372 upgrimpths 48373 upgrimcycls 48375 |
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