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| Mirrors > Home > MPE Home > Th. List > wlkiswwlks2lem3 | Structured version Visualization version GIF version | ||
| Description: Lemma 3 for wlkiswwlks2 30464. (Contributed by Alexander van der Vekens, 20-Jul-2018.) |
| Ref | Expression |
|---|---|
| wlkiswwlks2lem.f | ⊢ 𝐹 = (𝑥 ∈ (0..^((♯‘𝑃) − 1)) ↦ (◡𝐸‘{(𝑃‘𝑥), (𝑃‘(𝑥 + 1))})) |
| Ref | Expression |
|---|---|
| wlkiswwlks2lem3 | ⊢ ((𝑃 ∈ Word 𝑉 ∧ 1 ≤ (♯‘𝑃)) → 𝑃:(0...(♯‘𝐹))⟶𝑉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wlkiswwlks2lem.f | . . 3 ⊢ 𝐹 = (𝑥 ∈ (0..^((♯‘𝑃) − 1)) ↦ (◡𝐸‘{(𝑃‘𝑥), (𝑃‘(𝑥 + 1))})) | |
| 2 | 1 | wlkiswwlks2lem1 30458 | . 2 ⊢ ((𝑃 ∈ Word 𝑉 ∧ 1 ≤ (♯‘𝑃)) → (♯‘𝐹) = ((♯‘𝑃) − 1)) |
| 3 | wrdf 14663 | . . . 4 ⊢ (𝑃 ∈ Word 𝑉 → 𝑃:(0..^(♯‘𝑃))⟶𝑉) | |
| 4 | lencl 14678 | . . . 4 ⊢ (𝑃 ∈ Word 𝑉 → (♯‘𝑃) ∈ ℕ0) | |
| 5 | nn0z 12717 | . . . . . . . . 9 ⊢ ((♯‘𝑃) ∈ ℕ0 → (♯‘𝑃) ∈ ℤ) | |
| 6 | fzoval 13794 | . . . . . . . . 9 ⊢ ((♯‘𝑃) ∈ ℤ → (0..^(♯‘𝑃)) = (0...((♯‘𝑃) − 1))) | |
| 7 | 5, 6 | syl 18 | . . . . . . . 8 ⊢ ((♯‘𝑃) ∈ ℕ0 → (0..^(♯‘𝑃)) = (0...((♯‘𝑃) − 1))) |
| 8 | oveq2 7428 | . . . . . . . . 9 ⊢ (((♯‘𝑃) − 1) = (♯‘𝐹) → (0...((♯‘𝑃) − 1)) = (0...(♯‘𝐹))) | |
| 9 | 8 | eqcoms 2768 | . . . . . . . 8 ⊢ ((♯‘𝐹) = ((♯‘𝑃) − 1) → (0...((♯‘𝑃) − 1)) = (0...(♯‘𝐹))) |
| 10 | 7, 9 | sylan9eq 2815 | . . . . . . 7 ⊢ (((♯‘𝑃) ∈ ℕ0 ∧ (♯‘𝐹) = ((♯‘𝑃) − 1)) → (0..^(♯‘𝑃)) = (0...(♯‘𝐹))) |
| 11 | 10 | feq2d 6693 | . . . . . 6 ⊢ (((♯‘𝑃) ∈ ℕ0 ∧ (♯‘𝐹) = ((♯‘𝑃) − 1)) → (𝑃:(0..^(♯‘𝑃))⟶𝑉 ↔ 𝑃:(0...(♯‘𝐹))⟶𝑉)) |
| 12 | 11 | biimpcd 252 | . . . . 5 ⊢ (𝑃:(0..^(♯‘𝑃))⟶𝑉 → (((♯‘𝑃) ∈ ℕ0 ∧ (♯‘𝐹) = ((♯‘𝑃) − 1)) → 𝑃:(0...(♯‘𝐹))⟶𝑉)) |
| 13 | 12 | expd 421 | . . . 4 ⊢ (𝑃:(0..^(♯‘𝑃))⟶𝑉 → ((♯‘𝑃) ∈ ℕ0 → ((♯‘𝐹) = ((♯‘𝑃) − 1) → 𝑃:(0...(♯‘𝐹))⟶𝑉))) |
| 14 | 3, 4, 13 | sylc 66 | . . 3 ⊢ (𝑃 ∈ Word 𝑉 → ((♯‘𝐹) = ((♯‘𝑃) − 1) → 𝑃:(0...(♯‘𝐹))⟶𝑉)) |
| 15 | 14 | adantr 486 | . 2 ⊢ ((𝑃 ∈ Word 𝑉 ∧ 1 ≤ (♯‘𝑃)) → ((♯‘𝐹) = ((♯‘𝑃) − 1) → 𝑃:(0...(♯‘𝐹))⟶𝑉)) |
| 16 | 2, 15 | mpd 16 | 1 ⊢ ((𝑃 ∈ Word 𝑉 ∧ 1 ≤ (♯‘𝑃)) → 𝑃:(0...(♯‘𝐹))⟶𝑉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 {cpr 4585 class class class wbr 5102 ↦ cmpt 5185 ◡ccnv 5649 ⟶wf 6534 ‘cfv 6538 (class class class)co 7420 0cc0 11200 1c1 11201 + caddc 11203 ≤ cle 11344 − cmin 11541 ℕ0cn0 12606 ℤcz 12693 ...cfz 13639 ..^cfzo 13788 ♯chash 14474 Word cword 14658 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-1o 8476 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-fin 8977 df-card 10020 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-nn 12336 df-n0 12607 df-z 12694 df-uz 12966 df-fz 13640 df-fzo 13789 df-hash 14475 df-word 14659 |
| This theorem is used by: wlkiswwlks2lem6 30463 |
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