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| Mirrors > Home > MPE Home > Th. List > spthispth | Structured version Visualization version GIF version | ||
| Description: A simple path is a path (in an undirected graph). (Contributed by Alexander van der Vekens, 21-Oct-2017.) (Revised by AV, 9-Jan-2021.) (Proof shortened by AV, 30-Oct-2021.) |
| Ref | Expression |
|---|---|
| spthispth | ⊢ (𝐹(SPaths‘𝐺)𝑃 → 𝐹(Paths‘𝐺)𝑃) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 482 | . . 3 ⊢ ((𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡𝑃) → 𝐹(Trails‘𝐺)𝑃) | |
| 2 | funres11 6577 | . . . 4 ⊢ (Fun ◡𝑃 → Fun ◡(𝑃 ↾ (1..^(♯‘𝐹)))) | |
| 3 | 2 | adantl 481 | . . 3 ⊢ ((𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡𝑃) → Fun ◡(𝑃 ↾ (1..^(♯‘𝐹)))) |
| 4 | imain 6585 | . . . . 5 ⊢ (Fun ◡𝑃 → (𝑃 “ ({0, (♯‘𝐹)} ∩ (1..^(♯‘𝐹)))) = ((𝑃 “ {0, (♯‘𝐹)}) ∩ (𝑃 “ (1..^(♯‘𝐹))))) | |
| 5 | 1e0p1 12661 | . . . . . . . . . 10 ⊢ 1 = (0 + 1) | |
| 6 | 5 | oveq1i 7378 | . . . . . . . . 9 ⊢ (1..^(♯‘𝐹)) = ((0 + 1)..^(♯‘𝐹)) |
| 7 | 6 | ineq2i 4171 | . . . . . . . 8 ⊢ ({0, (♯‘𝐹)} ∩ (1..^(♯‘𝐹))) = ({0, (♯‘𝐹)} ∩ ((0 + 1)..^(♯‘𝐹))) |
| 8 | 0z 12511 | . . . . . . . . 9 ⊢ 0 ∈ ℤ | |
| 9 | prinfzo0 13626 | . . . . . . . . 9 ⊢ (0 ∈ ℤ → ({0, (♯‘𝐹)} ∩ ((0 + 1)..^(♯‘𝐹))) = ∅) | |
| 10 | 8, 9 | ax-mp 5 | . . . . . . . 8 ⊢ ({0, (♯‘𝐹)} ∩ ((0 + 1)..^(♯‘𝐹))) = ∅ |
| 11 | 7, 10 | eqtri 2760 | . . . . . . 7 ⊢ ({0, (♯‘𝐹)} ∩ (1..^(♯‘𝐹))) = ∅ |
| 12 | 11 | imaeq2i 6025 | . . . . . 6 ⊢ (𝑃 “ ({0, (♯‘𝐹)} ∩ (1..^(♯‘𝐹)))) = (𝑃 “ ∅) |
| 13 | ima0 6044 | . . . . . 6 ⊢ (𝑃 “ ∅) = ∅ | |
| 14 | 12, 13 | eqtri 2760 | . . . . 5 ⊢ (𝑃 “ ({0, (♯‘𝐹)} ∩ (1..^(♯‘𝐹)))) = ∅ |
| 15 | 4, 14 | eqtr3di 2787 | . . . 4 ⊢ (Fun ◡𝑃 → ((𝑃 “ {0, (♯‘𝐹)}) ∩ (𝑃 “ (1..^(♯‘𝐹)))) = ∅) |
| 16 | 15 | adantl 481 | . . 3 ⊢ ((𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡𝑃) → ((𝑃 “ {0, (♯‘𝐹)}) ∩ (𝑃 “ (1..^(♯‘𝐹)))) = ∅) |
| 17 | 1, 3, 16 | 3jca 1129 | . 2 ⊢ ((𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡𝑃) → (𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡(𝑃 ↾ (1..^(♯‘𝐹))) ∧ ((𝑃 “ {0, (♯‘𝐹)}) ∩ (𝑃 “ (1..^(♯‘𝐹)))) = ∅)) |
| 18 | isspth 29807 | . 2 ⊢ (𝐹(SPaths‘𝐺)𝑃 ↔ (𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡𝑃)) | |
| 19 | ispth 29806 | . 2 ⊢ (𝐹(Paths‘𝐺)𝑃 ↔ (𝐹(Trails‘𝐺)𝑃 ∧ Fun ◡(𝑃 ↾ (1..^(♯‘𝐹))) ∧ ((𝑃 “ {0, (♯‘𝐹)}) ∩ (𝑃 “ (1..^(♯‘𝐹)))) = ∅)) | |
| 20 | 17, 18, 19 | 3imtr4i 292 | 1 ⊢ (𝐹(SPaths‘𝐺)𝑃 → 𝐹(Paths‘𝐺)𝑃) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∩ cin 3902 ∅c0 4287 {cpr 4584 class class class wbr 5100 ◡ccnv 5631 ↾ cres 5634 “ cima 5635 Fun wfun 6494 ‘cfv 6500 (class class class)co 7368 0cc0 11038 1c1 11039 + caddc 11041 ℤcz 12500 ..^cfzo 13582 ♯chash 14265 Trailsctrls 29774 Pathscpths 29795 SPathscspths 29796 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5527 df-eprel 5532 df-po 5540 df-so 5541 df-fr 5585 df-we 5587 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6267 df-ord 6328 df-on 6329 df-lim 6330 df-suc 6331 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-mpo 7373 df-om 7819 df-1st 7943 df-2nd 7944 df-frecs 8233 df-wrecs 8264 df-recs 8313 df-rdg 8351 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11180 df-mnf 11181 df-xr 11182 df-ltxr 11183 df-le 11184 df-sub 11378 df-neg 11379 df-nn 12158 df-n0 12414 df-z 12501 df-uz 12764 df-fz 13436 df-fzo 13583 df-trls 29776 df-pths 29799 df-spths 29800 |
| This theorem is referenced by: spthiswlk 29811 isspthonpth 29834 spthonpthon 29836 usgr2trlspth 29846 usgr2pthspth 29847 pthspthcyc 29888 wspthsnonn0vne 30002 spthcycl 35345 upgrimspths 48270 |
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