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| Mirrors > Home > MPE Home > Th. List > trlres | Structured version Visualization version GIF version | ||
| Description: The restriction 〈𝐻, 𝑄〉 of a trail 〈𝐹, 𝑃〉 to an initial segment of the trail (of length 𝑁) forms a trail on the subgraph 𝑆 consisting of the edges in the initial segment. (Contributed by AV, 6-Mar-2021.) Hypothesis revised using the prefix operation. (Revised by AV, 30-Nov-2022.) |
| Ref | Expression |
|---|---|
| trlres.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| trlres.i | ⊢ 𝐼 = (iEdg‘𝐺) |
| trlres.d | ⊢ (𝜑 → 𝐹(Trails‘𝐺)𝑃) |
| trlres.n | ⊢ (𝜑 → 𝑁 ∈ (0..^(♯‘𝐹))) |
| trlres.h | ⊢ 𝐻 = (𝐹 prefix 𝑁) |
| trlres.s | ⊢ (𝜑 → (Vtx‘𝑆) = 𝑉) |
| trlres.e | ⊢ (𝜑 → (iEdg‘𝑆) = (𝐼 ↾ (𝐹 “ (0..^𝑁)))) |
| trlres.q | ⊢ 𝑄 = (𝑃 ↾ (0...𝑁)) |
| Ref | Expression |
|---|---|
| trlres | ⊢ (𝜑 → 𝐻(Trails‘𝑆)𝑄) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | trlres.v | . . 3 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | trlres.i | . . 3 ⊢ 𝐼 = (iEdg‘𝐺) | |
| 3 | trlres.d | . . . 4 ⊢ (𝜑 → 𝐹(Trails‘𝐺)𝑃) | |
| 4 | trliswlk 29674 | . . . 4 ⊢ (𝐹(Trails‘𝐺)𝑃 → 𝐹(Walks‘𝐺)𝑃) | |
| 5 | 3, 4 | syl 17 | . . 3 ⊢ (𝜑 → 𝐹(Walks‘𝐺)𝑃) |
| 6 | trlres.n | . . 3 ⊢ (𝜑 → 𝑁 ∈ (0..^(♯‘𝐹))) | |
| 7 | trlres.s | . . 3 ⊢ (𝜑 → (Vtx‘𝑆) = 𝑉) | |
| 8 | trlres.e | . . 3 ⊢ (𝜑 → (iEdg‘𝑆) = (𝐼 ↾ (𝐹 “ (0..^𝑁)))) | |
| 9 | trlres.h | . . 3 ⊢ 𝐻 = (𝐹 prefix 𝑁) | |
| 10 | trlres.q | . . 3 ⊢ 𝑄 = (𝑃 ↾ (0...𝑁)) | |
| 11 | 1, 2, 5, 6, 7, 8, 9, 10 | wlkres 29647 | . 2 ⊢ (𝜑 → 𝐻(Walks‘𝑆)𝑄) |
| 12 | 1, 2, 3, 6, 9 | trlreslem 29676 | . . 3 ⊢ (𝜑 → 𝐻:(0..^(♯‘𝐻))–1-1-onto→dom (𝐼 ↾ (𝐹 “ (0..^𝑁)))) |
| 13 | f1of1 6762 | . . 3 ⊢ (𝐻:(0..^(♯‘𝐻))–1-1-onto→dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) → 𝐻:(0..^(♯‘𝐻))–1-1→dom (𝐼 ↾ (𝐹 “ (0..^𝑁)))) | |
| 14 | df-f1 6486 | . . . 4 ⊢ (𝐻:(0..^(♯‘𝐻))–1-1→dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) ↔ (𝐻:(0..^(♯‘𝐻))⟶dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) ∧ Fun ◡𝐻)) | |
| 15 | 14 | simprbi 496 | . . 3 ⊢ (𝐻:(0..^(♯‘𝐻))–1-1→dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) → Fun ◡𝐻) |
| 16 | 12, 13, 15 | 3syl 18 | . 2 ⊢ (𝜑 → Fun ◡𝐻) |
| 17 | istrl 29673 | . 2 ⊢ (𝐻(Trails‘𝑆)𝑄 ↔ (𝐻(Walks‘𝑆)𝑄 ∧ Fun ◡𝐻)) | |
| 18 | 11, 16, 17 | sylanbrc 583 | 1 ⊢ (𝜑 → 𝐻(Trails‘𝑆)𝑄) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2111 class class class wbr 5089 ◡ccnv 5613 dom cdm 5614 ↾ cres 5616 “ cima 5617 Fun wfun 6475 ⟶wf 6477 –1-1→wf1 6478 –1-1-onto→wf1o 6480 ‘cfv 6481 (class class class)co 7346 0cc0 11006 ...cfz 13407 ..^cfzo 13554 ♯chash 14237 prefix cpfx 14578 Vtxcvtx 28974 iEdgciedg 28975 Walkscwlks 29575 Trailsctrls 29667 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5215 ax-sep 5232 ax-nul 5242 ax-pow 5301 ax-pr 5368 ax-un 7668 ax-cnex 11062 ax-resscn 11063 ax-1cn 11064 ax-icn 11065 ax-addcl 11066 ax-addrcl 11067 ax-mulcl 11068 ax-mulrcl 11069 ax-mulcom 11070 ax-addass 11071 ax-mulass 11072 ax-distr 11073 ax-i2m1 11074 ax-1ne0 11075 ax-1rid 11076 ax-rnegex 11077 ax-rrecex 11078 ax-cnre 11079 ax-pre-lttri 11080 ax-pre-lttrn 11081 ax-pre-ltadd 11082 ax-pre-mulgt0 11083 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-ifp 1063 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4281 df-if 4473 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-int 4896 df-iun 4941 df-br 5090 df-opab 5152 df-mpt 5171 df-tr 5197 df-id 5509 df-eprel 5514 df-po 5522 df-so 5523 df-fr 5567 df-we 5569 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-pred 6248 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-riota 7303 df-ov 7349 df-oprab 7350 df-mpo 7351 df-om 7797 df-1st 7921 df-2nd 7922 df-frecs 8211 df-wrecs 8242 df-recs 8291 df-rdg 8329 df-1o 8385 df-er 8622 df-map 8752 df-pm 8753 df-en 8870 df-dom 8871 df-sdom 8872 df-fin 8873 df-card 9832 df-pnf 11148 df-mnf 11149 df-xr 11150 df-ltxr 11151 df-le 11152 df-sub 11346 df-neg 11347 df-nn 12126 df-n0 12382 df-z 12469 df-uz 12733 df-fz 13408 df-fzo 13555 df-hash 14238 df-word 14421 df-substr 14549 df-pfx 14579 df-wlks 29578 df-trls 29669 |
| This theorem is referenced by: (None) |
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