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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 30290. (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 2737 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
| 2 | 1 | wlkf 29693 | . 2 ⊢ (𝐹(Walks‘𝐺)𝑃 → 𝐹 ∈ Word dom (iEdg‘𝐺)) |
| 3 | lencl 14461 | . 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 5099 dom cdm 5625 ‘cfv 6493 ℕ0cn0 12406 ♯chash 14258 Word cword 14441 iEdgciedg 29075 Walkscwlks 29675 |
| 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 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7683 ax-cnex 11087 ax-resscn 11088 ax-1cn 11089 ax-icn 11090 ax-addcl 11091 ax-addrcl 11092 ax-mulcl 11093 ax-mulrcl 11094 ax-mulcom 11095 ax-addass 11096 ax-mulass 11097 ax-distr 11098 ax-i2m1 11099 ax-1ne0 11100 ax-1rid 11101 ax-rnegex 11102 ax-rrecex 11103 ax-cnre 11104 ax-pre-lttri 11105 ax-pre-lttrn 11106 ax-pre-ltadd 11107 ax-pre-mulgt0 11108 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-1o 8400 df-er 8638 df-map 8770 df-en 8889 df-dom 8890 df-sdom 8891 df-fin 8892 df-card 9856 df-pnf 11173 df-mnf 11174 df-xr 11175 df-ltxr 11176 df-le 11177 df-sub 11371 df-neg 11372 df-nn 12151 df-n0 12407 df-z 12494 df-uz 12757 df-fz 13429 df-fzo 13576 df-hash 14259 df-word 14442 df-wlks 29678 |
| This theorem is referenced by: wlklenvp1 29697 wlkn0 29699 wlklenvm1 29700 uspgr2wlkeqi 29726 wlklenvclwlk 29732 wlkepvtx 29737 wlkonwlk1l 29740 wlkonl1iedg 29742 redwlk 29749 wlkp1lem1 29750 wlkp1lem7 29756 wlkp1 29758 pthdadjvtx 29806 dfpth2 29807 spthdep 29812 pthdepisspth 29813 spthonepeq 29830 cyclnumvtx 29878 crctcshlem1 29895 wlklnwwlkln1 29946 wlknwwlksnbij 29966 clwlkclwwlkflem 30084 eupthcl 30290 eupthp1 30296 eupth2lem3 30316 eupth2lems 30318 eupth2 30319 eucrct2eupth1 30324 revwlk 35332 pthhashvtx 35335 usgrgt2cycl 35337 usgrcyclgt2v 35338 acycgr1v 35356 upgrimpthslem2 48231 upgrimpths 48232 upgrimcycls 48234 |
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