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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 6891 | . . . 4 ⊢ (𝑊 ∈ (ClWalks‘𝐺) → 𝐺 ∈ V) | |
| 2 | clwlks 29911 | . . . . . . 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 2842 | . . . . 5 ⊢ (𝐺 ∈ V → (𝑊 ∈ (ClWalks‘𝐺) ↔ 𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))})) |
| 5 | elopaelxp 5730 | . . . . . . 7 ⊢ (𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))} → 𝑊 ∈ (V × V)) | |
| 6 | 5 | anim2i 625 | . . . . . 6 ⊢ ((𝐺 ∈ V ∧ 𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))}) → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V))) |
| 7 | 6 | ex 415 | . . . . 5 ⊢ (𝐺 ∈ V → (𝑊 ∈ {〈𝑓, 𝑔〉 ∣ (𝑓(Walks‘𝐺)𝑔 ∧ (𝑔‘0) = (𝑔‘(♯‘𝑓)))} → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V)))) |
| 8 | 4, 7 | sylbid 242 | . . . 4 ⊢ (𝐺 ∈ V → (𝑊 ∈ (ClWalks‘𝐺) → (𝐺 ∈ V ∧ 𝑊 ∈ (V × V)))) |
| 9 | 1, 8 | mpcom 38 | . . 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 29918 | . . 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 17 | . 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 269 | 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 |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 if-wif 1071 = wceq 1554 ∈ wcel 2136 ∀wral 3070 Vcvv 3448 ⊆ wss 3899 {csn 4576 {cpr 4578 class class class wbr 5094 {copab 5156 × cxp 5638 dom cdm 5640 ⟶wf 6506 ‘cfv 6510 (class class class)co 7385 1st c1st 7957 2nd c2nd 7958 0cc0 11063 1c1 11064 + caddc 11066 ...cfz 13502 ..^cfzo 13649 ♯chash 14333 Word cword 14516 Vtxcvtx 29136 iEdgciedg 29137 Walkscwlks 29736 ClWalkscclwlks 29909 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-rep 5221 ax-sep 5240 ax-nul 5250 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-cnex 11119 ax-resscn 11120 ax-1cn 11121 ax-icn 11122 ax-addcl 11123 ax-addrcl 11124 ax-mulcl 11125 ax-mulrcl 11126 ax-mulcom 11127 ax-addass 11128 ax-mulass 11129 ax-distr 11130 ax-i2m1 11131 ax-1ne0 11132 ax-1rid 11133 ax-rnegex 11134 ax-rrecex 11135 ax-cnre 11136 ax-pre-lttri 11137 ax-pre-lttrn 11138 ax-pre-ltadd 11139 ax-pre-mulgt0 11140 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-ifp 1072 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-nel 3056 df-ral 3071 df-rex 3081 df-reu 3362 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-int 4900 df-iun 4945 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-f1 6515 df-fo 6516 df-f1o 6517 df-fv 6518 df-riota 7342 df-ov 7388 df-oprab 7389 df-mpo 7390 df-om 7836 df-1st 7959 df-2nd 7960 df-frecs 8250 df-wrecs 8281 df-recs 8330 df-rdg 8369 df-1o 8425 df-er 8666 df-map 8798 df-pm 8799 df-en 8917 df-dom 8918 df-sdom 8919 df-fin 8920 df-card 9887 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 df-le 11212 df-sub 11406 df-neg 11407 df-nn 12201 df-n0 12472 df-z 12559 df-uz 12830 df-fz 13503 df-fzo 13650 df-hash 14334 df-word 14517 df-wlks 29739 df-clwlks 29910 |
| This theorem is referenced by: upgrclwlkcompim 29920 |
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