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| Mirrors > Home > MPE Home > Th. List > clwwnisshclwwsn | Structured version Visualization version GIF version | ||
| Description: Cyclically shifting a closed walk as word of fixed length results in a closed walk as word of the same length (in an undirected graph). (Contributed by Alexander van der Vekens, 10-Jun-2018.) (Revised by AV, 29-Apr-2021.) (Proof shortened by AV, 22-Mar-2022.) |
| Ref | Expression |
|---|---|
| clwwnisshclwwsn | β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β (π cyclShift π) β (π ClWWalksN πΊ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | clwwlkclwwlkn 29879 | . . 3 β’ (π β (π ClWWalksN πΊ) β π β (ClWWalksβπΊ)) | |
| 2 | clwwlknlen 29881 | . . . . . . 7 β’ (π β (π ClWWalksN πΊ) β (β―βπ) = π) | |
| 3 | 2 | eqcomd 2731 | . . . . . 6 β’ (π β (π ClWWalksN πΊ) β π = (β―βπ)) |
| 4 | 3 | oveq2d 7429 | . . . . 5 β’ (π β (π ClWWalksN πΊ) β (0...π) = (0...(β―βπ))) |
| 5 | 4 | eleq2d 2811 | . . . 4 β’ (π β (π ClWWalksN πΊ) β (π β (0...π) β π β (0...(β―βπ)))) |
| 6 | 5 | biimpa 475 | . . 3 β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β π β (0...(β―βπ))) |
| 7 | clwwisshclwwsn 29865 | . . 3 β’ ((π β (ClWWalksβπΊ) β§ π β (0...(β―βπ))) β (π cyclShift π) β (ClWWalksβπΊ)) | |
| 8 | 1, 6, 7 | syl2an2r 683 | . 2 β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β (π cyclShift π) β (ClWWalksβπΊ)) |
| 9 | eqid 2725 | . . . . 5 β’ (VtxβπΊ) = (VtxβπΊ) | |
| 10 | 9 | clwwlknwrd 29883 | . . . 4 β’ (π β (π ClWWalksN πΊ) β π β Word (VtxβπΊ)) |
| 11 | elfzelz 13528 | . . . 4 β’ (π β (0...π) β π β β€) | |
| 12 | cshwlen 14776 | . . . 4 β’ ((π β Word (VtxβπΊ) β§ π β β€) β (β―β(π cyclShift π)) = (β―βπ)) | |
| 13 | 10, 11, 12 | syl2an 594 | . . 3 β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β (β―β(π cyclShift π)) = (β―βπ)) |
| 14 | 2 | adantr 479 | . . 3 β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β (β―βπ) = π) |
| 15 | 13, 14 | eqtrd 2765 | . 2 β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β (β―β(π cyclShift π)) = π) |
| 16 | isclwwlkn 29876 | . 2 β’ ((π cyclShift π) β (π ClWWalksN πΊ) β ((π cyclShift π) β (ClWWalksβπΊ) β§ (β―β(π cyclShift π)) = π)) | |
| 17 | 8, 15, 16 | sylanbrc 581 | 1 β’ ((π β (π ClWWalksN πΊ) β§ π β (0...π)) β (π cyclShift π) β (π ClWWalksN πΊ)) |
| Colors of variables: wff setvar class |
| Syntax hints: β wi 4 β§ wa 394 = wceq 1533 β wcel 2098 βcfv 6543 (class class class)co 7413 0cc0 11133 β€cz 12583 ...cfz 13511 β―chash 14316 Word cword 14491 cyclShift ccsh 14765 Vtxcvtx 28848 ClWWalkscclwwlk 29830 ClWWalksN cclwwlkn 29873 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5281 ax-sep 5295 ax-nul 5302 ax-pow 5360 ax-pr 5424 ax-un 7735 ax-cnex 11189 ax-resscn 11190 ax-1cn 11191 ax-icn 11192 ax-addcl 11193 ax-addrcl 11194 ax-mulcl 11195 ax-mulrcl 11196 ax-mulcom 11197 ax-addass 11198 ax-mulass 11199 ax-distr 11200 ax-i2m1 11201 ax-1ne0 11202 ax-1rid 11203 ax-rnegex 11204 ax-rrecex 11205 ax-cnre 11206 ax-pre-lttri 11207 ax-pre-lttrn 11208 ax-pre-ltadd 11209 ax-pre-mulgt0 11210 ax-pre-sup 11211 |
| This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3961 df-nul 4320 df-if 4526 df-pw 4601 df-sn 4626 df-pr 4628 df-op 4632 df-uni 4905 df-int 4946 df-iun 4994 df-br 5145 df-opab 5207 df-mpt 5228 df-tr 5262 df-id 5571 df-eprel 5577 df-po 5585 df-so 5586 df-fr 5628 df-we 5630 df-xp 5679 df-rel 5680 df-cnv 5681 df-co 5682 df-dm 5683 df-rn 5684 df-res 5685 df-ima 5686 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7369 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7866 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-er 8718 df-map 8840 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-sup 9460 df-inf 9461 df-card 9957 df-pnf 11275 df-mnf 11276 df-xr 11277 df-ltxr 11278 df-le 11279 df-sub 11471 df-neg 11472 df-div 11897 df-nn 12238 df-2 12300 df-n0 12498 df-z 12584 df-uz 12848 df-rp 13002 df-ico 13357 df-fz 13512 df-fzo 13655 df-fl 13784 df-mod 13862 df-hash 14317 df-word 14492 df-lsw 14540 df-concat 14548 df-substr 14618 df-pfx 14648 df-csh 14766 df-clwwlk 29831 df-clwwlkn 29874 |
| This theorem is referenced by: clwwlknscsh 29911 |
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