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Mirrors > Home > MPE Home > Th. List > clwwlk0on0 | Structured version Visualization version GIF version |
Description: There is no word over the set of vertices representing a closed walk on vertex π of length 0 in a graph πΊ. (Contributed by AV, 17-Feb-2022.) (Revised by AV, 25-Feb-2022.) |
Ref | Expression |
---|---|
clwwlk0on0 | β’ (π(ClWWalksNOnβπΊ)0) = β |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqeq2 2745 | . . . . 5 β’ (π£ = π β ((π€β0) = π£ β (π€β0) = π)) | |
2 | 1 | rabbidv 3441 | . . . 4 β’ (π£ = π β {π€ β (π ClWWalksN πΊ) β£ (π€β0) = π£} = {π€ β (π ClWWalksN πΊ) β£ (π€β0) = π}) |
3 | oveq1 7416 | . . . . . 6 β’ (π = 0 β (π ClWWalksN πΊ) = (0 ClWWalksN πΊ)) | |
4 | clwwlkn0 29281 | . . . . . 6 β’ (0 ClWWalksN πΊ) = β | |
5 | 3, 4 | eqtrdi 2789 | . . . . 5 β’ (π = 0 β (π ClWWalksN πΊ) = β ) |
6 | 5 | rabeqdv 3448 | . . . 4 β’ (π = 0 β {π€ β (π ClWWalksN πΊ) β£ (π€β0) = π} = {π€ β β β£ (π€β0) = π}) |
7 | clwwlknonmpo 29342 | . . . 4 β’ (ClWWalksNOnβπΊ) = (π£ β (VtxβπΊ), π β β0 β¦ {π€ β (π ClWWalksN πΊ) β£ (π€β0) = π£}) | |
8 | 0ex 5308 | . . . . 5 β’ β β V | |
9 | 8 | rabex 5333 | . . . 4 β’ {π€ β β β£ (π€β0) = π} β V |
10 | 2, 6, 7, 9 | ovmpo 7568 | . . 3 β’ ((π β (VtxβπΊ) β§ 0 β β0) β (π(ClWWalksNOnβπΊ)0) = {π€ β β β£ (π€β0) = π}) |
11 | rab0 4383 | . . 3 β’ {π€ β β β£ (π€β0) = π} = β | |
12 | 10, 11 | eqtrdi 2789 | . 2 β’ ((π β (VtxβπΊ) β§ 0 β β0) β (π(ClWWalksNOnβπΊ)0) = β ) |
13 | 7 | mpondm0 7647 | . 2 β’ (Β¬ (π β (VtxβπΊ) β§ 0 β β0) β (π(ClWWalksNOnβπΊ)0) = β ) |
14 | 12, 13 | pm2.61i 182 | 1 β’ (π(ClWWalksNOnβπΊ)0) = β |
Colors of variables: wff setvar class |
Syntax hints: β§ wa 397 = wceq 1542 β wcel 2107 {crab 3433 β c0 4323 βcfv 6544 (class class class)co 7409 0cc0 11110 β0cn0 12472 Vtxcvtx 28256 ClWWalksN cclwwlkn 29277 ClWWalksNOncclwwlknon 29340 |
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-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 |
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-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-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-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-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-oadd 8470 df-er 8703 df-map 8822 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 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-nn 12213 df-n0 12473 df-xnn0 12545 df-z 12559 df-uz 12823 df-fz 13485 df-fzo 13628 df-hash 14291 df-word 14465 df-clwwlk 29235 df-clwwlkn 29278 df-clwwlknon 29341 |
This theorem is referenced by: clwwlknon0 29346 |
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