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Mirrors > Home > MPE Home > Th. List > cshwshashnsame | Structured version Visualization version GIF version |
Description: If a word (not consisting of identical symbols) has a length being a prime number, the size of the set of (different!) words resulting by cyclically shifting the original word equals the length of the original word. (Contributed by AV, 19-May-2018.) (Revised by AV, 10-Nov-2018.) |
Ref | Expression |
---|---|
cshwrepswhash1.m | ⊢ 𝑀 = {𝑤 ∈ Word 𝑉 ∣ ∃𝑛 ∈ (0..^(♯‘𝑊))(𝑊 cyclShift 𝑛) = 𝑤} |
Ref | Expression |
---|---|
cshwshashnsame | ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0) → (♯‘𝑀) = (♯‘𝑊))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cshwrepswhash1.m | . . . . . 6 ⊢ 𝑀 = {𝑤 ∈ Word 𝑉 ∣ ∃𝑛 ∈ (0..^(♯‘𝑊))(𝑊 cyclShift 𝑛) = 𝑤} | |
2 | 1 | cshwsiun 16789 | . . . . 5 ⊢ (𝑊 ∈ Word 𝑉 → 𝑀 = ∪ 𝑛 ∈ (0..^(♯‘𝑊)){(𝑊 cyclShift 𝑛)}) |
3 | 2 | ad2antrr 723 | . . . 4 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → 𝑀 = ∪ 𝑛 ∈ (0..^(♯‘𝑊)){(𝑊 cyclShift 𝑛)}) |
4 | 3 | fveq2d 6771 | . . 3 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → (♯‘𝑀) = (♯‘∪ 𝑛 ∈ (0..^(♯‘𝑊)){(𝑊 cyclShift 𝑛)})) |
5 | fzofi 13682 | . . . . 5 ⊢ (0..^(♯‘𝑊)) ∈ Fin | |
6 | 5 | a1i 11 | . . . 4 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → (0..^(♯‘𝑊)) ∈ Fin) |
7 | snfi 8822 | . . . . 5 ⊢ {(𝑊 cyclShift 𝑛)} ∈ Fin | |
8 | 7 | a1i 11 | . . . 4 ⊢ ((((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) ∧ 𝑛 ∈ (0..^(♯‘𝑊))) → {(𝑊 cyclShift 𝑛)} ∈ Fin) |
9 | id 22 | . . . . 5 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ)) | |
10 | 9 | cshwsdisj 16788 | . . . 4 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → Disj 𝑛 ∈ (0..^(♯‘𝑊)){(𝑊 cyclShift 𝑛)}) |
11 | 6, 8, 10 | hashiun 15522 | . . 3 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → (♯‘∪ 𝑛 ∈ (0..^(♯‘𝑊)){(𝑊 cyclShift 𝑛)}) = Σ𝑛 ∈ (0..^(♯‘𝑊))(♯‘{(𝑊 cyclShift 𝑛)})) |
12 | ovex 7301 | . . . . . 6 ⊢ (𝑊 cyclShift 𝑛) ∈ V | |
13 | hashsng 14072 | . . . . . 6 ⊢ ((𝑊 cyclShift 𝑛) ∈ V → (♯‘{(𝑊 cyclShift 𝑛)}) = 1) | |
14 | 12, 13 | mp1i 13 | . . . . 5 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → (♯‘{(𝑊 cyclShift 𝑛)}) = 1) |
15 | 14 | sumeq2sdv 15404 | . . . 4 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → Σ𝑛 ∈ (0..^(♯‘𝑊))(♯‘{(𝑊 cyclShift 𝑛)}) = Σ𝑛 ∈ (0..^(♯‘𝑊))1) |
16 | 1cnd 10958 | . . . . . . 7 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → 1 ∈ ℂ) | |
17 | fsumconst 15490 | . . . . . . 7 ⊢ (((0..^(♯‘𝑊)) ∈ Fin ∧ 1 ∈ ℂ) → Σ𝑛 ∈ (0..^(♯‘𝑊))1 = ((♯‘(0..^(♯‘𝑊))) · 1)) | |
18 | 5, 16, 17 | sylancr 587 | . . . . . 6 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → Σ𝑛 ∈ (0..^(♯‘𝑊))1 = ((♯‘(0..^(♯‘𝑊))) · 1)) |
19 | lencl 14224 | . . . . . . . . 9 ⊢ (𝑊 ∈ Word 𝑉 → (♯‘𝑊) ∈ ℕ0) | |
20 | 19 | adantr 481 | . . . . . . . 8 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (♯‘𝑊) ∈ ℕ0) |
21 | hashfzo0 14133 | . . . . . . . 8 ⊢ ((♯‘𝑊) ∈ ℕ0 → (♯‘(0..^(♯‘𝑊))) = (♯‘𝑊)) | |
22 | 20, 21 | syl 17 | . . . . . . 7 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (♯‘(0..^(♯‘𝑊))) = (♯‘𝑊)) |
23 | 22 | oveq1d 7283 | . . . . . 6 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘(0..^(♯‘𝑊))) · 1) = ((♯‘𝑊) · 1)) |
24 | prmnn 16367 | . . . . . . . . 9 ⊢ ((♯‘𝑊) ∈ ℙ → (♯‘𝑊) ∈ ℕ) | |
25 | 24 | nnred 11976 | . . . . . . . 8 ⊢ ((♯‘𝑊) ∈ ℙ → (♯‘𝑊) ∈ ℝ) |
26 | 25 | adantl 482 | . . . . . . 7 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (♯‘𝑊) ∈ ℝ) |
27 | ax-1rid 10929 | . . . . . . 7 ⊢ ((♯‘𝑊) ∈ ℝ → ((♯‘𝑊) · 1) = (♯‘𝑊)) | |
28 | 26, 27 | syl 17 | . . . . . 6 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘𝑊) · 1) = (♯‘𝑊)) |
29 | 18, 23, 28 | 3eqtrd 2782 | . . . . 5 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → Σ𝑛 ∈ (0..^(♯‘𝑊))1 = (♯‘𝑊)) |
30 | 29 | adantr 481 | . . . 4 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → Σ𝑛 ∈ (0..^(♯‘𝑊))1 = (♯‘𝑊)) |
31 | 15, 30 | eqtrd 2778 | . . 3 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → Σ𝑛 ∈ (0..^(♯‘𝑊))(♯‘{(𝑊 cyclShift 𝑛)}) = (♯‘𝑊)) |
32 | 4, 11, 31 | 3eqtrd 2782 | . 2 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) → (♯‘𝑀) = (♯‘𝑊)) |
33 | 32 | ex 413 | 1 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0) → (♯‘𝑀) = (♯‘𝑊))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ∃wrex 3065 {crab 3068 Vcvv 3430 {csn 4562 ∪ ciun 4925 ‘cfv 6427 (class class class)co 7268 Fincfn 8721 ℂcc 10857 ℝcr 10858 0cc0 10859 1c1 10860 · cmul 10864 ℕ0cn0 12221 ..^cfzo 13370 ♯chash 14032 Word cword 14205 cyclShift ccsh 14489 Σcsu 15385 ℙcprime 16364 |
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 5222 ax-nul 5229 ax-pow 5287 ax-pr 5351 ax-un 7579 ax-inf2 9387 ax-cnex 10915 ax-resscn 10916 ax-1cn 10917 ax-icn 10918 ax-addcl 10919 ax-addrcl 10920 ax-mulcl 10921 ax-mulrcl 10922 ax-mulcom 10923 ax-addass 10924 ax-mulass 10925 ax-distr 10926 ax-i2m1 10927 ax-1ne0 10928 ax-1rid 10929 ax-rnegex 10930 ax-rrecex 10931 ax-cnre 10932 ax-pre-lttri 10933 ax-pre-lttrn 10934 ax-pre-ltadd 10935 ax-pre-mulgt0 10936 ax-pre-sup 10937 |
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 3071 df-rmo 3072 df-rab 3073 df-v 3432 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4258 df-if 4461 df-pw 4536 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4841 df-int 4881 df-iun 4927 df-disj 5040 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5485 df-eprel 5491 df-po 5499 df-so 5500 df-fr 5540 df-se 5541 df-we 5542 df-xp 5591 df-rel 5592 df-cnv 5593 df-co 5594 df-dm 5595 df-rn 5596 df-res 5597 df-ima 5598 df-pred 6196 df-ord 6263 df-on 6264 df-lim 6265 df-suc 6266 df-iota 6385 df-fun 6429 df-fn 6430 df-f 6431 df-f1 6432 df-fo 6433 df-f1o 6434 df-fv 6435 df-isom 6436 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7704 df-1st 7821 df-2nd 7822 df-frecs 8085 df-wrecs 8116 df-recs 8190 df-rdg 8229 df-1o 8285 df-2o 8286 df-oadd 8289 df-er 8486 df-map 8605 df-en 8722 df-dom 8723 df-sdom 8724 df-fin 8725 df-sup 9189 df-inf 9190 df-oi 9257 df-dju 9647 df-card 9685 df-pnf 10999 df-mnf 11000 df-xr 11001 df-ltxr 11002 df-le 11003 df-sub 11195 df-neg 11196 df-div 11621 df-nn 11962 df-2 12024 df-3 12025 df-n0 12222 df-xnn0 12294 df-z 12308 df-uz 12571 df-rp 12719 df-fz 13228 df-fzo 13371 df-fl 13500 df-mod 13578 df-seq 13710 df-exp 13771 df-hash 14033 df-word 14206 df-concat 14262 df-substr 14342 df-pfx 14372 df-reps 14470 df-csh 14490 df-cj 14798 df-re 14799 df-im 14800 df-sqrt 14934 df-abs 14935 df-clim 15185 df-sum 15386 df-dvds 15952 df-gcd 16190 df-prm 16365 df-phi 16455 |
This theorem is referenced by: cshwshash 16794 umgrhashecclwwlk 28428 |
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