| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > clwlkcomp | Structured version Visualization version GIF version | ||
| Description: A closed walk expressed by properties of its components. (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 |
|---|---|
| clwlkcomp | ⊢ ((𝐺 ∈ 𝑋 ∧ 𝑊 ∈ (𝑆 × 𝑇)) → (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 | clwlkcomp.1 | . . . . . . 7 ⊢ 𝐹 = (1st ‘𝑊) | |
| 2 | 1 | eqcomi 2769 | . . . . . 6 ⊢ (1st ‘𝑊) = 𝐹 |
| 3 | clwlkcomp.2 | . . . . . . 7 ⊢ 𝑃 = (2nd ‘𝑊) | |
| 4 | 3 | eqcomi 2769 | . . . . . 6 ⊢ (2nd ‘𝑊) = 𝑃 |
| 5 | 2, 4 | pm3.2i 476 | . . . . 5 ⊢ ((1st ‘𝑊) = 𝐹 ∧ (2nd ‘𝑊) = 𝑃) |
| 6 | eqop 8028 | . . . . 5 ⊢ (𝑊 ∈ (𝑆 × 𝑇) → (𝑊 = 〈𝐹, 𝑃〉 ↔ ((1st ‘𝑊) = 𝐹 ∧ (2nd ‘𝑊) = 𝑃))) | |
| 7 | 5, 6 | mpbiri 261 | . . . 4 ⊢ (𝑊 ∈ (𝑆 × 𝑇) → 𝑊 = 〈𝐹, 𝑃〉) |
| 8 | 7 | eleq1d 2845 | . . 3 ⊢ (𝑊 ∈ (𝑆 × 𝑇) → (𝑊 ∈ (ClWalks‘𝐺) ↔ 〈𝐹, 𝑃〉 ∈ (ClWalks‘𝐺))) |
| 9 | df-br 5104 | . . 3 ⊢ (𝐹(ClWalks‘𝐺)𝑃 ↔ 〈𝐹, 𝑃〉 ∈ (ClWalks‘𝐺)) | |
| 10 | 8, 9 | bitr4di 292 | . 2 ⊢ (𝑊 ∈ (𝑆 × 𝑇) → (𝑊 ∈ (ClWalks‘𝐺) ↔ 𝐹(ClWalks‘𝐺)𝑃)) |
| 11 | isclwlke.v | . . 3 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 12 | isclwlke.i | . . 3 ⊢ 𝐼 = (iEdg‘𝐺) | |
| 13 | 11, 12 | isclwlke 30243 | . 2 ⊢ (𝐺 ∈ 𝑋 → (𝐹(ClWalks‘𝐺)𝑃 ↔ ((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)))))) |
| 14 | 10, 13 | sylan9bbr 520 | 1 ⊢ ((𝐺 ∈ 𝑋 ∧ 𝑊 ∈ (𝑆 × 𝑇)) → (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 1570 ∈ wcel 2145 ∀wral 3076 ⊆ wss 3899 {csn 4584 {cpr 4586 〈cop 4590 class class class wbr 5103 × cxp 5653 dom cdm 5655 ⟶wf 6529 ‘cfv 6533 (class class class)co 7413 1st c1st 7984 2nd c2nd 7985 0cc0 11124 1c1 11125 + caddc 11127 ...cfz 13561 ..^cfzo 13709 ♯chash 14394 Word cword 14578 Vtxcvtx 29453 iEdgciedg 29454 ClWalkscclwlks 30236 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 |
| 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 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 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 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-er 8696 df-map 8828 df-pm 8829 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-card 9944 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-nn 12258 df-n0 12529 df-z 12616 df-uz 12888 df-fz 13562 df-fzo 13710 df-hash 14395 df-word 14579 df-wlks 30059 df-clwlks 30237 |
| This theorem is used by: clwlkcompim 30246 |
| Copyright terms: Public domain | W3C validator |