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Mirrors > Home > MPE Home > Th. List > cshwshash | Structured version Visualization version GIF version |
Description: If a word 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 or 1. (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 |
---|---|
cshwshash | ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | repswsymballbi 14493 | . . . . 5 ⊢ (𝑊 ∈ Word 𝑉 → (𝑊 = ((𝑊‘0) repeatS (♯‘𝑊)) ↔ ∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0))) | |
2 | 1 | adantr 481 | . . . 4 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (𝑊 = ((𝑊‘0) repeatS (♯‘𝑊)) ↔ ∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0))) |
3 | prmnn 16379 | . . . . . . . . 9 ⊢ ((♯‘𝑊) ∈ ℙ → (♯‘𝑊) ∈ ℕ) | |
4 | 3 | nnge1d 12021 | . . . . . . . 8 ⊢ ((♯‘𝑊) ∈ ℙ → 1 ≤ (♯‘𝑊)) |
5 | wrdsymb1 14256 | . . . . . . . 8 ⊢ ((𝑊 ∈ Word 𝑉 ∧ 1 ≤ (♯‘𝑊)) → (𝑊‘0) ∈ 𝑉) | |
6 | 4, 5 | sylan2 593 | . . . . . . 7 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (𝑊‘0) ∈ 𝑉) |
7 | 6 | adantr 481 | . . . . . 6 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ 𝑊 = ((𝑊‘0) repeatS (♯‘𝑊))) → (𝑊‘0) ∈ 𝑉) |
8 | 3 | ad2antlr 724 | . . . . . 6 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ 𝑊 = ((𝑊‘0) repeatS (♯‘𝑊))) → (♯‘𝑊) ∈ ℕ) |
9 | simpr 485 | . . . . . 6 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ 𝑊 = ((𝑊‘0) repeatS (♯‘𝑊))) → 𝑊 = ((𝑊‘0) repeatS (♯‘𝑊))) | |
10 | cshwrepswhash1.m | . . . . . . 7 ⊢ 𝑀 = {𝑤 ∈ Word 𝑉 ∣ ∃𝑛 ∈ (0..^(♯‘𝑊))(𝑊 cyclShift 𝑛) = 𝑤} | |
11 | 10 | cshwrepswhash1 16804 | . . . . . 6 ⊢ (((𝑊‘0) ∈ 𝑉 ∧ (♯‘𝑊) ∈ ℕ ∧ 𝑊 = ((𝑊‘0) repeatS (♯‘𝑊))) → (♯‘𝑀) = 1) |
12 | 7, 8, 9, 11 | syl3anc 1370 | . . . . 5 ⊢ (((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) ∧ 𝑊 = ((𝑊‘0) repeatS (♯‘𝑊))) → (♯‘𝑀) = 1) |
13 | 12 | ex 413 | . . . 4 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (𝑊 = ((𝑊‘0) repeatS (♯‘𝑊)) → (♯‘𝑀) = 1)) |
14 | 2, 13 | sylbird 259 | . . 3 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0) → (♯‘𝑀) = 1)) |
15 | olc 865 | . . 3 ⊢ ((♯‘𝑀) = 1 → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1)) | |
16 | 14, 15 | syl6com 37 | . 2 ⊢ (∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0) → ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1))) |
17 | rexnal 3169 | . . . 4 ⊢ (∃𝑖 ∈ (0..^(♯‘𝑊)) ¬ (𝑊‘𝑖) = (𝑊‘0) ↔ ¬ ∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0)) | |
18 | df-ne 2944 | . . . . . 6 ⊢ ((𝑊‘𝑖) ≠ (𝑊‘0) ↔ ¬ (𝑊‘𝑖) = (𝑊‘0)) | |
19 | 18 | bicomi 223 | . . . . 5 ⊢ (¬ (𝑊‘𝑖) = (𝑊‘0) ↔ (𝑊‘𝑖) ≠ (𝑊‘0)) |
20 | 19 | rexbii 3181 | . . . 4 ⊢ (∃𝑖 ∈ (0..^(♯‘𝑊)) ¬ (𝑊‘𝑖) = (𝑊‘0) ↔ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) |
21 | 17, 20 | bitr3i 276 | . . 3 ⊢ (¬ ∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0) ↔ ∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0)) |
22 | 10 | cshwshashnsame 16805 | . . . 4 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → (∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0) → (♯‘𝑀) = (♯‘𝑊))) |
23 | orc 864 | . . . 4 ⊢ ((♯‘𝑀) = (♯‘𝑊) → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1)) | |
24 | 22, 23 | syl6com 37 | . . 3 ⊢ (∃𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) ≠ (𝑊‘0) → ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1))) |
25 | 21, 24 | sylbi 216 | . 2 ⊢ (¬ ∀𝑖 ∈ (0..^(♯‘𝑊))(𝑊‘𝑖) = (𝑊‘0) → ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1))) |
26 | 16, 25 | pm2.61i 182 | 1 ⊢ ((𝑊 ∈ Word 𝑉 ∧ (♯‘𝑊) ∈ ℙ) → ((♯‘𝑀) = (♯‘𝑊) ∨ (♯‘𝑀) = 1)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 844 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ∀wral 3064 ∃wrex 3065 {crab 3068 class class class wbr 5074 ‘cfv 6433 (class class class)co 7275 0cc0 10871 1c1 10872 ≤ cle 11010 ℕcn 11973 ..^cfzo 13382 ♯chash 14044 Word cword 14217 repeatS creps 14481 cyclShift ccsh 14501 ℙcprime 16376 |
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-inf2 9399 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 ax-pre-sup 10949 |
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-rmo 3071 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-disj 5040 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-se 5545 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-isom 6442 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-2o 8298 df-oadd 8301 df-er 8498 df-map 8617 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-sup 9201 df-inf 9202 df-oi 9269 df-dju 9659 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-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-n0 12234 df-xnn0 12306 df-z 12320 df-uz 12583 df-rp 12731 df-fz 13240 df-fzo 13383 df-fl 13512 df-mod 13590 df-seq 13722 df-exp 13783 df-hash 14045 df-word 14218 df-concat 14274 df-substr 14354 df-pfx 14384 df-reps 14482 df-csh 14502 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-clim 15197 df-sum 15398 df-dvds 15964 df-gcd 16202 df-prm 16377 df-phi 16467 |
This theorem is referenced by: hashecclwwlkn1 28441 |
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