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Mirrors > Home > MPE Home > Th. List > rusgrnumwwlkg | Structured version Visualization version GIF version |
Description: In a ðŸ-regular graph, the number of walks (as words) of a fixed length ð from a fixed vertex is ðŸ to the power of ð. Closed form of rusgrnumwwlk 29229. (Contributed by Alexander van der Vekens, 30-Sep-2018.) (Revised by AV, 7-May-2021.) |
Ref | Expression |
---|---|
rusgrnumwwlkg.v | ⢠ð = (Vtxâðº) |
Ref | Expression |
---|---|
rusgrnumwwlkg | ⢠((ðº RegUSGraph ðŸ ⧠(ð â Fin ⧠ð â ð ⧠ð â â0)) â (â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð}) = (ðŸâð)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3simpc 1151 | . . . 4 ⢠((ð â Fin ⧠ð â ð ⧠ð â â0) â (ð â ð ⧠ð â â0)) | |
2 | 1 | adantl 483 | . . 3 ⢠((ðº RegUSGraph ðŸ ⧠(ð â Fin ⧠ð â ð ⧠ð â â0)) â (ð â ð ⧠ð â â0)) |
3 | rusgrnumwwlkg.v | . . . 4 ⢠ð = (Vtxâðº) | |
4 | eqid 2733 | . . . 4 ⢠(ð£ â ð, ð â â0 ⊠(â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð£})) = (ð£ â ð, ð â â0 ⊠(â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð£})) | |
5 | 3, 4 | rusgrnumwwlklem 29224 | . . 3 ⢠((ð â ð ⧠ð â â0) â (ð(ð£ â ð, ð â â0 ⊠(â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð£}))ð) = (â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð})) |
6 | 2, 5 | syl 17 | . 2 ⢠((ðº RegUSGraph ðŸ ⧠(ð â Fin ⧠ð â ð ⧠ð â â0)) â (ð(ð£ â ð, ð â â0 ⊠(â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð£}))ð) = (â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð})) |
7 | 3, 4 | rusgrnumwwlk 29229 | . 2 ⢠((ðº RegUSGraph ðŸ ⧠(ð â Fin ⧠ð â ð ⧠ð â â0)) â (ð(ð£ â ð, ð â â0 ⊠(â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð£}))ð) = (ðŸâð)) |
8 | 6, 7 | eqtr3d 2775 | 1 ⢠((ðº RegUSGraph ðŸ ⧠(ð â Fin ⧠ð â ð ⧠ð â â0)) â (â¯â{ð€ â (ð WWalksN ðº) ⣠(ð€â0) = ð}) = (ðŸâð)) |
Colors of variables: wff setvar class |
Syntax hints: â wi 4 ⧠wa 397 ⧠w3a 1088 = wceq 1542 â wcel 2107 {crab 3433 class class class wbr 5149 âcfv 6544 (class class class)co 7409 â cmpo 7411 Fincfn 8939 0cc0 11110 â0cn0 12472 âcexp 14027 â¯chash 14290 Vtxcvtx 28256 RegUSGraph crusgr 28813 WWalksN cwwlksn 29080 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-inf2 9636 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-int 4952 df-iun 5000 df-disj 5115 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-se 5633 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-isom 6553 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7856 df-1st 7975 df-2nd 7976 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-1o 8466 df-2o 8467 df-oadd 8470 df-er 8703 df-map 8822 df-pm 8823 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-sup 9437 df-oi 9505 df-dju 9896 df-card 9934 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-sub 11446 df-neg 11447 df-div 11872 df-nn 12213 df-2 12275 df-3 12276 df-n0 12473 df-xnn0 12545 df-z 12559 df-uz 12823 df-rp 12975 df-xadd 13093 df-fz 13485 df-fzo 13628 df-seq 13967 df-exp 14028 df-hash 14291 df-word 14465 df-lsw 14513 df-concat 14521 df-s1 14546 df-substr 14591 df-pfx 14621 df-cj 15046 df-re 15047 df-im 15048 df-sqrt 15182 df-abs 15183 df-clim 15432 df-sum 15633 df-vtx 28258 df-iedg 28259 df-edg 28308 df-uhgr 28318 df-ushgr 28319 df-upgr 28342 df-umgr 28343 df-uspgr 28410 df-usgr 28411 df-fusgr 28574 df-nbgr 28590 df-vtxdg 28723 df-rgr 28814 df-rusgr 28815 df-wwlks 29084 df-wwlksn 29085 |
This theorem is referenced by: rusgrnumwlkg 29231 clwwlknclwwlkdifnum 29233 |
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