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Mirrors > Home > MPE Home > Th. List > wlkp1lem5 | Structured version Visualization version GIF version |
Description: Lemma for wlkp1 29717. (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 ∈ 𝑊) |
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 6921 | . . 3 ⊢ (𝑄‘𝑘) = ((𝑃 ∪ {〈(𝑁 + 1), 𝐶〉})‘𝑘) |
3 | fzp1nel 13668 | . . . . . . . . 9 ⊢ ¬ (𝑁 + 1) ∈ (0...𝑁) | |
4 | eleq1 2832 | . . . . . . . . . . 11 ⊢ (𝑘 = (𝑁 + 1) → (𝑘 ∈ (0...𝑁) ↔ (𝑁 + 1) ∈ (0...𝑁))) | |
5 | 4 | notbid 318 | . . . . . . . . . 10 ⊢ (𝑘 = (𝑁 + 1) → (¬ 𝑘 ∈ (0...𝑁) ↔ ¬ (𝑁 + 1) ∈ (0...𝑁))) |
6 | 5 | eqcoms 2748 | . . . . . . . . 9 ⊢ ((𝑁 + 1) = 𝑘 → (¬ 𝑘 ∈ (0...𝑁) ↔ ¬ (𝑁 + 1) ∈ (0...𝑁))) |
7 | 3, 6 | mpbiri 258 | . . . . . . . 8 ⊢ ((𝑁 + 1) = 𝑘 → ¬ 𝑘 ∈ (0...𝑁)) |
8 | 7 | a1i 11 | . . . . . . 7 ⊢ (𝜑 → ((𝑁 + 1) = 𝑘 → ¬ 𝑘 ∈ (0...𝑁))) |
9 | 8 | con2d 134 | . . . . . 6 ⊢ (𝜑 → (𝑘 ∈ (0...𝑁) → ¬ (𝑁 + 1) = 𝑘)) |
10 | 9 | imp 406 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → ¬ (𝑁 + 1) = 𝑘) |
11 | 10 | neqned 2953 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → (𝑁 + 1) ≠ 𝑘) |
12 | fvunsn 7213 | . . . 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 | eqtrid 2792 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → (𝑄‘𝑘) = (𝑃‘𝑘)) |
15 | 14 | ralrimiva 3152 | 1 ⊢ (𝜑 → ∀𝑘 ∈ (0...𝑁)(𝑄‘𝑘) = (𝑃‘𝑘)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1537 ∈ wcel 2108 ≠ wne 2946 ∀wral 3067 ∪ cun 3974 ⊆ wss 3976 {csn 4648 {cpr 4650 〈cop 4654 class class class wbr 5166 dom cdm 5700 Fun wfun 6567 ‘cfv 6573 (class class class)co 7448 Fincfn 9003 0cc0 11184 1c1 11185 + caddc 11187 ...cfz 13567 ♯chash 14379 Vtxcvtx 29031 iEdgciedg 29032 Edgcedg 29082 Walkscwlks 29632 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-id 5593 df-po 5607 df-so 5608 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-1st 8030 df-2nd 8031 df-er 8763 df-en 9004 df-dom 9005 df-sdom 9006 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-z 12640 df-fz 13568 |
This theorem is referenced by: wlkp1lem6 29714 wlkp1lem7 29715 wlkp1lem8 29716 eupth2eucrct 30249 |
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