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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cshf1o | Structured version Visualization version GIF version | ||
| Description: Condition for the cyclic shift to be a bijection. (Contributed by Thierry Arnoux, 4-Oct-2023.) |
| Ref | Expression |
|---|---|
| cshf1o | ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran 𝑊) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cshwrnid 33036 | . . 3 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑁 ∈ ℤ) → ran (𝑊 cyclShift 𝑁) = ran 𝑊) | |
| 2 | 1 | 3adant2 1132 | . 2 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → ran (𝑊 cyclShift 𝑁) = ran 𝑊) |
| 3 | wrddm 14474 | . . . . 5 ⊢ (𝑊 ∈ Word 𝐷 → dom 𝑊 = (0..^(♯‘𝑊))) | |
| 4 | 3 | 3ad2ant1 1134 | . . . 4 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → dom 𝑊 = (0..^(♯‘𝑊))) |
| 5 | simp2 1138 | . . . . . 6 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → 𝑊:dom 𝑊–1-1→𝐷) | |
| 6 | f1eq2 6726 | . . . . . . 7 ⊢ (dom 𝑊 = (0..^(♯‘𝑊)) → (𝑊:dom 𝑊–1-1→𝐷 ↔ 𝑊:(0..^(♯‘𝑊))–1-1→𝐷)) | |
| 7 | 6 | biimpa 476 | . . . . . 6 ⊢ ((dom 𝑊 = (0..^(♯‘𝑊)) ∧ 𝑊:dom 𝑊–1-1→𝐷) → 𝑊:(0..^(♯‘𝑊))–1-1→𝐷) |
| 8 | 4, 5, 7 | syl2anc 585 | . . . . 5 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → 𝑊:(0..^(♯‘𝑊))–1-1→𝐷) |
| 9 | simp3 1139 | . . . . 5 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → 𝑁 ∈ ℤ) | |
| 10 | eqid 2737 | . . . . . 6 ⊢ (𝑊 cyclShift 𝑁) = (𝑊 cyclShift 𝑁) | |
| 11 | cshf1 14763 | . . . . . 6 ⊢ ((𝑊:(0..^(♯‘𝑊))–1-1→𝐷 ∧ 𝑁 ∈ ℤ ∧ (𝑊 cyclShift 𝑁) = (𝑊 cyclShift 𝑁)) → (𝑊 cyclShift 𝑁):(0..^(♯‘𝑊))–1-1→𝐷) | |
| 12 | 10, 11 | mp3an3 1453 | . . . . 5 ⊢ ((𝑊:(0..^(♯‘𝑊))–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → (𝑊 cyclShift 𝑁):(0..^(♯‘𝑊))–1-1→𝐷) |
| 13 | 8, 9, 12 | syl2anc 585 | . . . 4 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → (𝑊 cyclShift 𝑁):(0..^(♯‘𝑊))–1-1→𝐷) |
| 14 | f1eq2 6726 | . . . . 5 ⊢ (dom 𝑊 = (0..^(♯‘𝑊)) → ((𝑊 cyclShift 𝑁):dom 𝑊–1-1→𝐷 ↔ (𝑊 cyclShift 𝑁):(0..^(♯‘𝑊))–1-1→𝐷)) | |
| 15 | 14 | biimpar 477 | . . . 4 ⊢ ((dom 𝑊 = (0..^(♯‘𝑊)) ∧ (𝑊 cyclShift 𝑁):(0..^(♯‘𝑊))–1-1→𝐷) → (𝑊 cyclShift 𝑁):dom 𝑊–1-1→𝐷) |
| 16 | 4, 13, 15 | syl2anc 585 | . . 3 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → (𝑊 cyclShift 𝑁):dom 𝑊–1-1→𝐷) |
| 17 | f1f1orn 6785 | . . 3 ⊢ ((𝑊 cyclShift 𝑁):dom 𝑊–1-1→𝐷 → (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran (𝑊 cyclShift 𝑁)) | |
| 18 | 16, 17 | syl 17 | . 2 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran (𝑊 cyclShift 𝑁)) |
| 19 | f1oeq3 6764 | . . 3 ⊢ (ran (𝑊 cyclShift 𝑁) = ran 𝑊 → ((𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran (𝑊 cyclShift 𝑁) ↔ (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran 𝑊)) | |
| 20 | 19 | biimpa 476 | . 2 ⊢ ((ran (𝑊 cyclShift 𝑁) = ran 𝑊 ∧ (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran (𝑊 cyclShift 𝑁)) → (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran 𝑊) |
| 21 | 2, 18, 20 | syl2anc 585 | 1 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷 ∧ 𝑁 ∈ ℤ) → (𝑊 cyclShift 𝑁):dom 𝑊–1-1-onto→ran 𝑊) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 dom cdm 5624 ran crn 5625 –1-1→wf1 6489 –1-1-onto→wf1o 6491 ‘cfv 6492 (class class class)co 7360 0cc0 11029 ℤcz 12515 ..^cfzo 13599 ♯chash 14283 Word cword 14466 cyclShift ccsh 14741 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-pre-sup 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-1o 8398 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-fin 8890 df-sup 9348 df-inf 9349 df-card 9854 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-nn 12166 df-2 12235 df-n0 12429 df-z 12516 df-uz 12780 df-rp 12934 df-fz 13453 df-fzo 13600 df-fl 13742 df-mod 13820 df-hash 14284 df-word 14467 df-concat 14524 df-substr 14595 df-pfx 14625 df-csh 14742 |
| This theorem is referenced by: cycpmconjslem2 33231 |
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