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Mirrors > Home > MPE Home > Th. List > wlkp1lem5 | Structured version Visualization version GIF version |
Description: Lemma for wlkp1 26788. (Contributed by AV, 6-Mar-2021.) |
Ref | Expression |
---|---|
wlkp1.v | ⊢ 𝑉 = (Vtx‘𝐺) |
wlkp1.i | ⊢ 𝐼 = (iEdg‘𝐺) |
wlkp1.f | ⊢ (𝜑 → Fun 𝐼) |
wlkp1.a | ⊢ (𝜑 → 𝐼 ∈ Fin) |
wlkp1.b | ⊢ (𝜑 → 𝐵 ∈ V) |
wlkp1.c | ⊢ (𝜑 → 𝐶 ∈ 𝑉) |
wlkp1.d | ⊢ (𝜑 → ¬ 𝐵 ∈ dom 𝐼) |
wlkp1.w | ⊢ (𝜑 → 𝐹(Walks‘𝐺)𝑃) |
wlkp1.n | ⊢ 𝑁 = (♯‘𝐹) |
wlkp1.e | ⊢ (𝜑 → 𝐸 ∈ (Edg‘𝐺)) |
wlkp1.x | ⊢ (𝜑 → {(𝑃‘𝑁), 𝐶} ⊆ 𝐸) |
wlkp1.u | ⊢ (𝜑 → (iEdg‘𝑆) = (𝐼 ∪ {〈𝐵, 𝐸〉})) |
wlkp1.h | ⊢ 𝐻 = (𝐹 ∪ {〈𝑁, 𝐵〉}) |
wlkp1.q | ⊢ 𝑄 = (𝑃 ∪ {〈(𝑁 + 1), 𝐶〉}) |
wlkp1.s | ⊢ (𝜑 → (Vtx‘𝑆) = 𝑉) |
Ref | Expression |
---|---|
wlkp1lem5 | ⊢ (𝜑 → ∀𝑘 ∈ (0...𝑁)(𝑄‘𝑘) = (𝑃‘𝑘)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wlkp1.q | . . . 4 ⊢ 𝑄 = (𝑃 ∪ {〈(𝑁 + 1), 𝐶〉}) | |
2 | 1 | fveq1i 6353 | . . 3 ⊢ (𝑄‘𝑘) = ((𝑃 ∪ {〈(𝑁 + 1), 𝐶〉})‘𝑘) |
3 | fzp1nel 12617 | . . . . . . . . 9 ⊢ ¬ (𝑁 + 1) ∈ (0...𝑁) | |
4 | eleq1 2827 | . . . . . . . . . . 11 ⊢ (𝑘 = (𝑁 + 1) → (𝑘 ∈ (0...𝑁) ↔ (𝑁 + 1) ∈ (0...𝑁))) | |
5 | 4 | notbid 307 | . . . . . . . . . 10 ⊢ (𝑘 = (𝑁 + 1) → (¬ 𝑘 ∈ (0...𝑁) ↔ ¬ (𝑁 + 1) ∈ (0...𝑁))) |
6 | 5 | eqcoms 2768 | . . . . . . . . 9 ⊢ ((𝑁 + 1) = 𝑘 → (¬ 𝑘 ∈ (0...𝑁) ↔ ¬ (𝑁 + 1) ∈ (0...𝑁))) |
7 | 3, 6 | mpbiri 248 | . . . . . . . 8 ⊢ ((𝑁 + 1) = 𝑘 → ¬ 𝑘 ∈ (0...𝑁)) |
8 | 7 | a1i 11 | . . . . . . 7 ⊢ (𝜑 → ((𝑁 + 1) = 𝑘 → ¬ 𝑘 ∈ (0...𝑁))) |
9 | 8 | con2d 129 | . . . . . 6 ⊢ (𝜑 → (𝑘 ∈ (0...𝑁) → ¬ (𝑁 + 1) = 𝑘)) |
10 | 9 | imp 444 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → ¬ (𝑁 + 1) = 𝑘) |
11 | 10 | neqned 2939 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → (𝑁 + 1) ≠ 𝑘) |
12 | fvunsn 6609 | . . . 4 ⊢ ((𝑁 + 1) ≠ 𝑘 → ((𝑃 ∪ {〈(𝑁 + 1), 𝐶〉})‘𝑘) = (𝑃‘𝑘)) | |
13 | 11, 12 | syl 17 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → ((𝑃 ∪ {〈(𝑁 + 1), 𝐶〉})‘𝑘) = (𝑃‘𝑘)) |
14 | 2, 13 | syl5eq 2806 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → (𝑄‘𝑘) = (𝑃‘𝑘)) |
15 | 14 | ralrimiva 3104 | 1 ⊢ (𝜑 → ∀𝑘 ∈ (0...𝑁)(𝑄‘𝑘) = (𝑃‘𝑘)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 196 ∧ wa 383 = wceq 1632 ∈ wcel 2139 ≠ wne 2932 ∀wral 3050 Vcvv 3340 ∪ cun 3713 ⊆ wss 3715 {csn 4321 {cpr 4323 〈cop 4327 class class class wbr 4804 dom cdm 5266 Fun wfun 6043 ‘cfv 6049 (class class class)co 6813 Fincfn 8121 0cc0 10128 1c1 10129 + caddc 10131 ...cfz 12519 ♯chash 13311 Vtxcvtx 26073 iEdgciedg 26074 Edgcedg 26138 Walkscwlks 26702 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1871 ax-4 1886 ax-5 1988 ax-6 2054 ax-7 2090 ax-8 2141 ax-9 2148 ax-10 2168 ax-11 2183 ax-12 2196 ax-13 2391 ax-ext 2740 ax-sep 4933 ax-nul 4941 ax-pow 4992 ax-pr 5055 ax-un 7114 ax-cnex 10184 ax-resscn 10185 ax-1cn 10186 ax-icn 10187 ax-addcl 10188 ax-addrcl 10189 ax-mulcl 10190 ax-mulrcl 10191 ax-mulcom 10192 ax-addass 10193 ax-mulass 10194 ax-distr 10195 ax-i2m1 10196 ax-1ne0 10197 ax-1rid 10198 ax-rnegex 10199 ax-rrecex 10200 ax-cnre 10201 ax-pre-lttri 10202 ax-pre-lttrn 10203 ax-pre-ltadd 10204 ax-pre-mulgt0 10205 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1073 df-3an 1074 df-tru 1635 df-ex 1854 df-nf 1859 df-sb 2047 df-eu 2611 df-mo 2612 df-clab 2747 df-cleq 2753 df-clel 2756 df-nfc 2891 df-ne 2933 df-nel 3036 df-ral 3055 df-rex 3056 df-reu 3057 df-rab 3059 df-v 3342 df-sbc 3577 df-csb 3675 df-dif 3718 df-un 3720 df-in 3722 df-ss 3729 df-nul 4059 df-if 4231 df-pw 4304 df-sn 4322 df-pr 4324 df-op 4328 df-uni 4589 df-iun 4674 df-br 4805 df-opab 4865 df-mpt 4882 df-id 5174 df-po 5187 df-so 5188 df-xp 5272 df-rel 5273 df-cnv 5274 df-co 5275 df-dm 5276 df-rn 5277 df-res 5278 df-ima 5279 df-iota 6012 df-fun 6051 df-fn 6052 df-f 6053 df-f1 6054 df-fo 6055 df-f1o 6056 df-fv 6057 df-riota 6774 df-ov 6816 df-oprab 6817 df-mpt2 6818 df-1st 7333 df-2nd 7334 df-er 7911 df-en 8122 df-dom 8123 df-sdom 8124 df-pnf 10268 df-mnf 10269 df-xr 10270 df-ltxr 10271 df-le 10272 df-sub 10460 df-neg 10461 df-z 11570 df-fz 12520 |
This theorem is referenced by: wlkp1lem6 26785 wlkp1lem7 26786 wlkp1lem8 26787 eupth2eucrct 27369 |
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