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| Mirrors > Home > MPE Home > Th. List > trlsegvdeglem1 | Structured version Visualization version GIF version | ||
| Description: Lemma for trlsegvdeg 30653. (Contributed by AV, 20-Feb-2021.) |
| Ref | Expression |
|---|---|
| trlsegvdeg.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| trlsegvdeg.i | ⊢ 𝐼 = (iEdg‘𝐺) |
| trlsegvdeg.f | ⊢ (𝜑 → Fun 𝐼) |
| trlsegvdeg.n | ⊢ (𝜑 → 𝑁 ∈ (0..^(♯‘𝐹))) |
| trlsegvdeg.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| trlsegvdeg.w | ⊢ (𝜑 → 𝐹(Trails‘𝐺)𝑃) |
| Ref | Expression |
|---|---|
| trlsegvdeglem1 | ⊢ (𝜑 → ((𝑃‘𝑁) ∈ 𝑉 ∧ (𝑃‘(𝑁 + 1)) ∈ 𝑉)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | trlsegvdeg.n | . 2 ⊢ (𝜑 → 𝑁 ∈ (0..^(♯‘𝐹))) | |
| 2 | trlsegvdeg.w | . . 3 ⊢ (𝜑 → 𝐹(Trails‘𝐺)𝑃) | |
| 3 | trliswlk 30111 | . . 3 ⊢ (𝐹(Trails‘𝐺)𝑃 → 𝐹(Walks‘𝐺)𝑃) | |
| 4 | trlsegvdeg.v | . . . . . . 7 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 5 | 4 | wlkpvtx 30069 | . . . . . 6 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝑁 ∈ (0...(♯‘𝐹)) → (𝑃‘𝑁) ∈ 𝑉)) |
| 6 | elfzofz 13725 | . . . . . 6 ⊢ (𝑁 ∈ (0..^(♯‘𝐹)) → 𝑁 ∈ (0...(♯‘𝐹))) | |
| 7 | 5, 6 | impel 515 | . . . . 5 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ 𝑁 ∈ (0..^(♯‘𝐹))) → (𝑃‘𝑁) ∈ 𝑉) |
| 8 | 4 | wlkpvtx 30069 | . . . . . 6 ⊢ (𝐹(Walks‘𝐺)𝑃 → ((𝑁 + 1) ∈ (0...(♯‘𝐹)) → (𝑃‘(𝑁 + 1)) ∈ 𝑉)) |
| 9 | fzofzp1 13814 | . . . . . 6 ⊢ (𝑁 ∈ (0..^(♯‘𝐹)) → (𝑁 + 1) ∈ (0...(♯‘𝐹))) | |
| 10 | 8, 9 | impel 515 | . . . . 5 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ 𝑁 ∈ (0..^(♯‘𝐹))) → (𝑃‘(𝑁 + 1)) ∈ 𝑉) |
| 11 | 7, 10 | jca 521 | . . . 4 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ 𝑁 ∈ (0..^(♯‘𝐹))) → ((𝑃‘𝑁) ∈ 𝑉 ∧ (𝑃‘(𝑁 + 1)) ∈ 𝑉)) |
| 12 | 11 | ex 418 | . . 3 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝑁 ∈ (0..^(♯‘𝐹)) → ((𝑃‘𝑁) ∈ 𝑉 ∧ (𝑃‘(𝑁 + 1)) ∈ 𝑉))) |
| 13 | 2, 3, 12 | 3syl 19 | . 2 ⊢ (𝜑 → (𝑁 ∈ (0..^(♯‘𝐹)) → ((𝑃‘𝑁) ∈ 𝑉 ∧ (𝑃‘(𝑁 + 1)) ∈ 𝑉))) |
| 14 | 1, 13 | mpd 16 | 1 ⊢ (𝜑 → ((𝑃‘𝑁) ∈ 𝑉 ∧ (𝑃‘(𝑁 + 1)) ∈ 𝑉)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2146 class class class wbr 5111 Fun wfun 6534 ‘cfv 6540 (class class class)co 7419 0cc0 11119 1c1 11120 + caddc 11122 ...cfz 13555 ..^cfzo 13703 ♯chash 14388 Vtxcvtx 29405 iEdgciedg 29406 Walkscwlks 30008 Trailsctrls 30104 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11175 ax-resscn 11176 ax-1cn 11177 ax-icn 11178 ax-addcl 11179 ax-addrcl 11180 ax-mulcl 11181 ax-mulrcl 11182 ax-mulcom 11183 ax-addass 11184 ax-mulass 11185 ax-distr 11186 ax-i2m1 11187 ax-1ne0 11188 ax-1rid 11189 ax-rnegex 11190 ax-rrecex 11191 ax-cnre 11192 ax-pre-lttri 11193 ax-pre-lttrn 11194 ax-pre-ltadd 11195 ax-pre-mulgt0 11196 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-1st 7992 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-er 8700 df-map 8832 df-en 8950 df-dom 8951 df-sdom 8952 df-fin 8953 df-card 9941 df-pnf 11264 df-mnf 11265 df-xr 11266 df-ltxr 11267 df-le 11268 df-sub 11462 df-neg 11463 df-nn 12253 df-n0 12524 df-z 12611 df-uz 12883 df-fz 13556 df-fzo 13704 df-hash 14389 df-word 14573 df-wlks 30011 df-trls 30106 |
| This theorem is used by: eupth2lem3lem3 30656 eupth2lem3lem4 30657 eupth2lem3lem5 30658 |
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