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| Mirrors > Home > ILE Home > Th. List > trlres | 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 16156 | . . . 4 ⊢ (𝐹(Trails‘𝐺)𝑃 → 𝐹(Walks‘𝐺)𝑃) | |
| 5 | 3, 4 | syl 14 | . . 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 16149 | . 2 ⊢ (𝜑 → 𝐻(Walks‘𝑆)𝑄) |
| 12 | 1, 2, 3, 6, 9 | trlreslem 16158 | . . 3 ⊢ (𝜑 → 𝐻:(0..^(♯‘𝐻))–1-1-onto→dom (𝐼 ↾ (𝐹 “ (0..^𝑁)))) |
| 13 | f1of1 5576 | . . 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 5326 | . . . 4 ⊢ (𝐻:(0..^(♯‘𝐻))–1-1→dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) ↔ (𝐻:(0..^(♯‘𝐻))⟶dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) ∧ Fun ◡𝐻)) | |
| 15 | 14 | simprbi 275 | . . 3 ⊢ (𝐻:(0..^(♯‘𝐻))–1-1→dom (𝐼 ↾ (𝐹 “ (0..^𝑁))) → Fun ◡𝐻) |
| 16 | 12, 13, 15 | 3syl 17 | . 2 ⊢ (𝜑 → Fun ◡𝐻) |
| 17 | istrl 16155 | . 2 ⊢ (𝐻(Trails‘𝑆)𝑄 ↔ (𝐻(Walks‘𝑆)𝑄 ∧ Fun ◡𝐻)) | |
| 18 | 11, 16, 17 | sylanbrc 417 | 1 ⊢ (𝜑 → 𝐻(Trails‘𝑆)𝑄) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 class class class wbr 4083 ◡ccnv 4719 dom cdm 4720 ↾ cres 4722 “ cima 4723 Fun wfun 5315 ⟶wf 5317 –1-1→wf1 5318 –1-1-onto→wf1o 5320 ‘cfv 5321 (class class class)co 6010 0cc0 8015 ...cfz 10221 ..^cfzo 10355 ♯chash 11014 prefix cpfx 11225 Vtxcvtx 15834 iEdgciedg 15835 Walkscwlks 16089 Trailsctrls 16150 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4199 ax-sep 4202 ax-nul 4210 ax-pow 4259 ax-pr 4294 ax-un 4525 ax-setind 4630 ax-iinf 4681 ax-cnex 8106 ax-resscn 8107 ax-1cn 8108 ax-1re 8109 ax-icn 8110 ax-addcl 8111 ax-addrcl 8112 ax-mulcl 8113 ax-addcom 8115 ax-mulcom 8116 ax-addass 8117 ax-mulass 8118 ax-distr 8119 ax-i2m1 8120 ax-0lt1 8121 ax-1rid 8122 ax-0id 8123 ax-rnegex 8124 ax-cnre 8126 ax-pre-ltirr 8127 ax-pre-ltwlin 8128 ax-pre-lttrn 8129 ax-pre-apti 8130 ax-pre-ltadd 8131 |
| This theorem depends on definitions: df-bi 117 df-dc 840 df-ifp 984 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-nul 3492 df-if 3603 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-iun 3967 df-br 4084 df-opab 4146 df-mpt 4147 df-tr 4183 df-id 4385 df-iord 4458 df-on 4460 df-ilim 4461 df-suc 4463 df-iom 4684 df-xp 4726 df-rel 4727 df-cnv 4728 df-co 4729 df-dm 4730 df-rn 4731 df-res 4732 df-ima 4733 df-iota 5281 df-fun 5323 df-fn 5324 df-f 5325 df-f1 5326 df-fo 5327 df-f1o 5328 df-fv 5329 df-riota 5963 df-ov 6013 df-oprab 6014 df-mpo 6015 df-1st 6295 df-2nd 6296 df-recs 6462 df-frec 6548 df-1o 6573 df-er 6693 df-map 6810 df-en 6901 df-dom 6902 df-fin 6903 df-pnf 8199 df-mnf 8200 df-xr 8201 df-ltxr 8202 df-le 8203 df-sub 8335 df-neg 8336 df-inn 9127 df-2 9185 df-3 9186 df-4 9187 df-5 9188 df-6 9189 df-7 9190 df-8 9191 df-9 9192 df-n0 9386 df-z 9463 df-dec 9595 df-uz 9739 df-fz 10222 df-fzo 10356 df-ihash 11015 df-word 11090 df-substr 11199 df-pfx 11226 df-ndx 13056 df-slot 13057 df-base 13059 df-edgf 15827 df-vtx 15836 df-iedg 15837 df-wlks 16090 df-trls 16151 |
| This theorem is referenced by: (None) |
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