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| Mirrors > Home > MPE Home > Th. List > clwlkcompim | Structured version Visualization version GIF version | ||
| Description: Implications for the properties of the components of a closed walk. (Contributed by Alexander van der Vekens, 24-Jun-2018.) (Revised by AV, 17-Feb-2021.) |
| Ref | Expression |
|---|---|
| isclwlke.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| isclwlke.i | ⊢ 𝐼 = (iEdg‘𝐺) |
| clwlkcomp.1 | ⊢ 𝐹 = (1st ‘𝑊) |
| clwlkcomp.2 | ⊢ 𝑃 = (2nd ‘𝑊) |
| Ref | Expression |
|---|---|
| clwlkcompim | ⊢ (𝑊 ∈ (ClWalks‘𝐺) → ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) ∧ (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) ∧ (𝑃‘0) = (𝑃‘(♯‘𝐹))))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elfvex 6920 | . . . 4 ⊢ (𝑊 ∈ (ClWalks‘𝐺) → 𝐺 ∈ V) | |
| 2 | clwlks 30360 | . . . . . . 7 ⊢ (ClWalks‘𝐺) = {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))} | |
| 3 | 2 | a1i 11 | . . . . . 6 ⊢ (𝐺 ∈ V → (ClWalks‘𝐺) = {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))}) |
| 4 | 3 | eleq2d 2846 | . . . . 5 ⊢ (𝐺 ∈ V → (𝑊 ∈ (ClWalks‘𝐺) ↔ 𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))})) |
| 5 | elopaelxp 5740 | . . . . . . 7 ⊢ (𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))} → 𝑊 ∈ (V × V)) | |
| 6 | 5 | anim2i 629 | . . . . . 6 ⊢ ((𝐺 ∈ V ∧ 𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))}) → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V))) |
| 7 | 6 | ex 418 | . . . . 5 ⊢ (𝐺 ∈ V → (𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))} → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V)))) |
| 8 | 4, 7 | sylbid 243 | . . . 4 ⊢ (𝐺 ∈ V → (𝑊 ∈ (ClWalks‘𝐺) → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V)))) |
| 9 | 1, 8 | mpcom 39 | . . 3 ⊢ (𝑊 ∈ (ClWalks‘𝐺) → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V))) |
| 10 | isclwlke.v | . . . 4 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 11 | isclwlke.i | . . . 4 ⊢ 𝐼 = (iEdg‘𝐺) | |
| 12 | clwlkcomp.1 | . . . 4 ⊢ 𝐹 = (1st ‘𝑊) | |
| 13 | clwlkcomp.2 | . . . 4 ⊢ 𝑃 = (2nd ‘𝑊) | |
| 14 | 10, 11, 12, 13 | clwlkcomp 30367 | . . 3 ⊢ ((𝐺 ∈ V ∧ 𝑊 ∈ (V × V)) → (𝑊 ∈ (ClWalks‘𝐺) ↔ ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) ∧ (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) ∧ (𝑃‘0) = (𝑃‘(♯‘𝐹)))))) |
| 15 | 9, 14 | syl 18 | . 2 ⊢ (𝑊 ∈ (ClWalks‘𝐺) → (𝑊 ∈ (ClWalks‘𝐺) ↔ ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) ∧ (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) ∧ (𝑃‘0) = (𝑃‘(♯‘𝐹)))))) |
| 16 | 15 | ibi 270 | 1 ⊢ (𝑊 ∈ (ClWalks‘𝐺) → ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) ∧ (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) ∧ (𝑃‘0) = (𝑃‘(♯‘𝐹))))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 if-wif 1078 = wceq 1569 ∈ wcel 2144 ∀wral 3076 Vcvv 3450 ⊆ wss 3895 {csn 4583 {cpr 4585 class class class wbr 5102 {copab 5166 × cxp 5648 dom cdm 5650 ⟶wf 6534 ‘cfv 6538 (class class class)co 7420 1st c1st 7999 2nd c2nd 8000 0cc0 11201 1c1 11202 + caddc 11204 ...cfz 13640 ..^cfzo 13789 ♯chash 14475 Word cword 14659 Vtxcvtx 29575 iEdgciedg 29576 Walkscwlks 30178 ClWalkscclwlks 30358 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11257 ax-resscn 11258 ax-1cn 11259 ax-icn 11260 ax-addcl 11261 ax-addrcl 11262 ax-mulcl 11263 ax-mulrcl 11264 ax-mulcom 11265 ax-addass 11266 ax-mulass 11267 ax-distr 11268 ax-i2m1 11269 ax-1ne0 11270 ax-1rid 11271 ax-rnegex 11272 ax-rrecex 11273 ax-cnre 11274 ax-pre-lttri 11275 ax-pre-lttrn 11276 ax-pre-ltadd 11277 ax-pre-mulgt0 11278 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-ifp 1079 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8300 df-wrecs 8331 df-recs 8380 df-rdg 8419 df-1o 8477 df-er 8718 df-map 8850 df-pm 8851 df-en 8975 df-dom 8976 df-sdom 8977 df-fin 8978 df-card 10021 df-pnf 11346 df-mnf 11347 df-xr 11348 df-ltxr 11349 df-le 11350 df-sub 11544 df-neg 11545 df-nn 12337 df-n0 12608 df-z 12695 df-uz 12967 df-fz 13641 df-fzo 13790 df-hash 14476 df-word 14660 df-wlks 30181 df-clwlks 30359 |
| This theorem is used by: upgrclwlkcompim 30369 |
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