| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > redwlklem | Structured version Visualization version GIF version | ||
| Description: Lemma for redwlk 30233. (Contributed by Alexander van der Vekens, 1-Nov-2017.) (Revised by AV, 29-Jan-2021.) |
| Ref | Expression |
|---|---|
| redwlklem | ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹) ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) → (𝑃 ↾ (0..^(♯‘𝐹))):(0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))))⟶𝑉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpr 490 | . . . . 5 ⊢ (((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) → 𝑃:(0...(♯‘𝐹))⟶𝑉) | |
| 2 | fzossfz 13793 | . . . . 5 ⊢ (0..^(♯‘𝐹)) ⊆ (0...(♯‘𝐹)) | |
| 3 | fssres 6740 | . . . . 5 ⊢ ((𝑃:(0...(♯‘𝐹))⟶𝑉 ∧ (0..^(♯‘𝐹)) ⊆ (0...(♯‘𝐹))) → (𝑃 ↾ (0..^(♯‘𝐹))):(0..^(♯‘𝐹))⟶𝑉) | |
| 4 | 1, 2, 3 | sylancl 598 | . . . 4 ⊢ (((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) → (𝑃 ↾ (0..^(♯‘𝐹))):(0..^(♯‘𝐹))⟶𝑉) |
| 5 | 4 | ex 418 | . . 3 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → (𝑃:(0...(♯‘𝐹))⟶𝑉 → (𝑃 ↾ (0..^(♯‘𝐹))):(0..^(♯‘𝐹))⟶𝑉)) |
| 6 | lencl 14658 | . . . . . . . 8 ⊢ (𝐹 ∈ Word 𝑆 → (♯‘𝐹) ∈ ℕ0) | |
| 7 | 6 | nn0zd 12699 | . . . . . . 7 ⊢ (𝐹 ∈ Word 𝑆 → (♯‘𝐹) ∈ ℤ) |
| 8 | fzoval 13774 | . . . . . . 7 ⊢ ((♯‘𝐹) ∈ ℤ → (0..^(♯‘𝐹)) = (0...((♯‘𝐹) − 1))) | |
| 9 | 7, 8 | syl 18 | . . . . . 6 ⊢ (𝐹 ∈ Word 𝑆 → (0..^(♯‘𝐹)) = (0...((♯‘𝐹) − 1))) |
| 10 | 9 | adantr 486 | . . . . 5 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → (0..^(♯‘𝐹)) = (0...((♯‘𝐹) − 1))) |
| 11 | wrdred1hash 14686 | . . . . . 6 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → (♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))) = ((♯‘𝐹) − 1)) | |
| 12 | oveq2 7420 | . . . . . . 7 ⊢ ((♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))) = ((♯‘𝐹) − 1) → (0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1))))) = (0...((♯‘𝐹) − 1))) | |
| 13 | 12 | eqeq2d 2772 | . . . . . 6 ⊢ ((♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))) = ((♯‘𝐹) − 1) → ((0..^(♯‘𝐹)) = (0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1))))) ↔ (0..^(♯‘𝐹)) = (0...((♯‘𝐹) − 1)))) |
| 14 | 11, 13 | syl 18 | . . . . 5 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → ((0..^(♯‘𝐹)) = (0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1))))) ↔ (0..^(♯‘𝐹)) = (0...((♯‘𝐹) − 1)))) |
| 15 | 10, 14 | mpbird 260 | . . . 4 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → (0..^(♯‘𝐹)) = (0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))))) |
| 16 | 15 | feq2d 6685 | . . 3 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → ((𝑃 ↾ (0..^(♯‘𝐹))):(0..^(♯‘𝐹))⟶𝑉 ↔ (𝑃 ↾ (0..^(♯‘𝐹))):(0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))))⟶𝑉)) |
| 17 | 5, 16 | sylibd 242 | . 2 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹)) → (𝑃:(0...(♯‘𝐹))⟶𝑉 → (𝑃 ↾ (0..^(♯‘𝐹))):(0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))))⟶𝑉)) |
| 18 | 17 | 3impia 1135 | 1 ⊢ ((𝐹 ∈ Word 𝑆 ∧ 1 ≤ (♯‘𝐹) ∧ 𝑃:(0...(♯‘𝐹))⟶𝑉) → (𝑃 ↾ (0..^(♯‘𝐹))):(0...(♯‘(𝐹 ↾ (0..^((♯‘𝐹) − 1)))))⟶𝑉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 ⊆ wss 3899 class class class wbr 5103 ↾ cres 5653 ⟶wf 6527 ‘cfv 6531 (class class class)co 7412 0cc0 11181 1c1 11182 ≤ cle 11325 − cmin 11522 ℤcz 12674 ...cfz 13620 ..^cfzo 13768 ♯chash 14454 Word cword 14638 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8460 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-card 10001 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-nn 12317 df-n0 12588 df-z 12675 df-uz 12947 df-fz 13621 df-fzo 13769 df-hash 14455 df-word 14639 |
| This theorem is used by: redwlk 30233 |
| Copyright terms: Public domain | W3C validator |