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Mirrors > Home > MPE Home > Th. List > ccats1val2 | Structured version Visualization version GIF version |
Description: Value of the symbol concatenated with a word. (Contributed by Alexander van der Vekens, 5-Aug-2018.) (Proof shortened by Alexander van der Vekens, 14-Oct-2018.) |
Ref | Expression |
---|---|
ccats1val2 | ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → ((𝑊 ++ 〈“𝑆”〉)‘𝐼) = 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1135 | . . 3 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → 𝑊 ∈ Word 𝑉) | |
2 | s1cl 14307 | . . . 4 ⊢ (𝑆 ∈ 𝑉 → 〈“𝑆”〉 ∈ Word 𝑉) | |
3 | 2 | 3ad2ant2 1133 | . . 3 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → 〈“𝑆”〉 ∈ Word 𝑉) |
4 | lencl 14236 | . . . . . . . . 9 ⊢ (𝑊 ∈ Word 𝑉 → (♯‘𝑊) ∈ ℕ0) | |
5 | 4 | nn0zd 12424 | . . . . . . . 8 ⊢ (𝑊 ∈ Word 𝑉 → (♯‘𝑊) ∈ ℤ) |
6 | elfzomin 13459 | . . . . . . . 8 ⊢ ((♯‘𝑊) ∈ ℤ → (♯‘𝑊) ∈ ((♯‘𝑊)..^((♯‘𝑊) + 1))) | |
7 | 5, 6 | syl 17 | . . . . . . 7 ⊢ (𝑊 ∈ Word 𝑉 → (♯‘𝑊) ∈ ((♯‘𝑊)..^((♯‘𝑊) + 1))) |
8 | s1len 14311 | . . . . . . . . 9 ⊢ (♯‘〈“𝑆”〉) = 1 | |
9 | 8 | oveq2i 7286 | . . . . . . . 8 ⊢ ((♯‘𝑊) + (♯‘〈“𝑆”〉)) = ((♯‘𝑊) + 1) |
10 | 9 | oveq2i 7286 | . . . . . . 7 ⊢ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉))) = ((♯‘𝑊)..^((♯‘𝑊) + 1)) |
11 | 7, 10 | eleqtrrdi 2850 | . . . . . 6 ⊢ (𝑊 ∈ Word 𝑉 → (♯‘𝑊) ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉)))) |
12 | 11 | adantr 481 | . . . . 5 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝐼 = (♯‘𝑊)) → (♯‘𝑊) ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉)))) |
13 | eleq1 2826 | . . . . . 6 ⊢ (𝐼 = (♯‘𝑊) → (𝐼 ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉))) ↔ (♯‘𝑊) ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉))))) | |
14 | 13 | adantl 482 | . . . . 5 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝐼 = (♯‘𝑊)) → (𝐼 ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉))) ↔ (♯‘𝑊) ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉))))) |
15 | 12, 14 | mpbird 256 | . . . 4 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝐼 = (♯‘𝑊)) → 𝐼 ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉)))) |
16 | 15 | 3adant2 1130 | . . 3 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → 𝐼 ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉)))) |
17 | ccatval2 14283 | . . 3 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 〈“𝑆”〉 ∈ Word 𝑉 ∧ 𝐼 ∈ ((♯‘𝑊)..^((♯‘𝑊) + (♯‘〈“𝑆”〉)))) → ((𝑊 ++ 〈“𝑆”〉)‘𝐼) = (〈“𝑆”〉‘(𝐼 − (♯‘𝑊)))) | |
18 | 1, 3, 16, 17 | syl3anc 1370 | . 2 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → ((𝑊 ++ 〈“𝑆”〉)‘𝐼) = (〈“𝑆”〉‘(𝐼 − (♯‘𝑊)))) |
19 | oveq1 7282 | . . . . 5 ⊢ (𝐼 = (♯‘𝑊) → (𝐼 − (♯‘𝑊)) = ((♯‘𝑊) − (♯‘𝑊))) | |
20 | 19 | 3ad2ant3 1134 | . . . 4 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → (𝐼 − (♯‘𝑊)) = ((♯‘𝑊) − (♯‘𝑊))) |
21 | 4 | nn0cnd 12295 | . . . . . 6 ⊢ (𝑊 ∈ Word 𝑉 → (♯‘𝑊) ∈ ℂ) |
22 | 21 | subidd 11320 | . . . . 5 ⊢ (𝑊 ∈ Word 𝑉 → ((♯‘𝑊) − (♯‘𝑊)) = 0) |
23 | 22 | 3ad2ant1 1132 | . . . 4 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → ((♯‘𝑊) − (♯‘𝑊)) = 0) |
24 | 20, 23 | eqtrd 2778 | . . 3 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → (𝐼 − (♯‘𝑊)) = 0) |
25 | 24 | fveq2d 6778 | . 2 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → (〈“𝑆”〉‘(𝐼 − (♯‘𝑊))) = (〈“𝑆”〉‘0)) |
26 | s1fv 14315 | . . 3 ⊢ (𝑆 ∈ 𝑉 → (〈“𝑆”〉‘0) = 𝑆) | |
27 | 26 | 3ad2ant2 1133 | . 2 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → (〈“𝑆”〉‘0) = 𝑆) |
28 | 18, 25, 27 | 3eqtrd 2782 | 1 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 𝑆 ∈ 𝑉 ∧ 𝐼 = (♯‘𝑊)) → ((𝑊 ++ 〈“𝑆”〉)‘𝐼) = 𝑆) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ‘cfv 6433 (class class class)co 7275 0cc0 10871 1c1 10872 + caddc 10874 − cmin 11205 ℤcz 12319 ..^cfzo 13382 ♯chash 14044 Word cword 14217 ++ cconcat 14273 〈“cs1 14300 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-n0 12234 df-z 12320 df-uz 12583 df-fz 13240 df-fzo 13383 df-hash 14045 df-word 14218 df-concat 14274 df-s1 14301 |
This theorem is referenced by: ccatws1ls 14343 ccatw2s1p1 14346 ccatw2s1p1OLD 14347 ccatw2s1p2 14348 gsmsymgrfixlem1 19035 gsmsymgreqlem2 19039 wwlksnext 28258 clwwlkwwlksb 28418 clwwlknonwwlknonb 28470 |
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