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Theorem 2cshwcshw 14852
Description: If a word is a cyclically shifted word, and a second word is the result of cyclically shifting the same word, then the second word is the result of cyclically shifting the first word. (Contributed by AV, 11-May-2018.) (Revised by AV, 12-Jun-2018.) (Proof shortened by AV, 3-Nov-2018.)
Assertion
Ref Expression
2cshwcshw ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → ((𝐾 ∈ (0...𝑁) ∧ 𝑋 = (𝑌 cyclShift 𝐾) ∧ ∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
Distinct variable groups:   𝑚,𝑛,𝐾   𝑚,𝑁,𝑛   𝑚,𝑉,𝑛   𝑚,𝑋,𝑛   𝑚,𝑌,𝑛   𝑚,𝑍,𝑛

Proof of Theorem 2cshwcshw
StepHypRef Expression
1 difelfznle 13661 . . . . . . . . . . . . . . . . . 18 ((𝐾 ∈ (0...𝑁) ∧ 𝑚 ∈ (0...𝑁) ∧ ¬ 𝐾𝑚) → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁))
213exp 1135 . . . . . . . . . . . . . . . . 17 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → (¬ 𝐾𝑚 → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁))))
32ad2antrr 738 . . . . . . . . . . . . . . . 16 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑚 ∈ (0...𝑁) → (¬ 𝐾𝑚 → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁))))
43imp 411 . . . . . . . . . . . . . . 15 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) → (¬ 𝐾𝑚 → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁)))
54adantr 485 . . . . . . . . . . . . . 14 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → (¬ 𝐾𝑚 → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁)))
65com12 33 . . . . . . . . . . . . 13 𝐾𝑚 → (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁)))
76adantl 486 . . . . . . . . . . . 12 ((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) → (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁)))
87imp 411 . . . . . . . . . . 11 (((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) ∧ ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚))) → ((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁))
9 simprl 782 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → 𝑌 ∈ Word 𝑉)
109ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → 𝑌 ∈ Word 𝑉)
11 elfzelz 13543 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝐾 ∈ (0...𝑁) → 𝐾 ∈ ℤ)
1211adantr 485 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → 𝐾 ∈ ℤ)
1312ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → 𝐾 ∈ ℤ)
14 elfz2 13533 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝐾 ∈ (0...𝑁) ↔ ((0 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (0 ≤ 𝐾𝐾𝑁)))
15 zaddcl 12625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝑚 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑚 + 𝑁) ∈ ℤ)
1615adantrr 729 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝑚 ∈ ℤ ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → (𝑚 + 𝑁) ∈ ℤ)
17 simprr 784 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝑚 ∈ ℤ ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → 𝐾 ∈ ℤ)
1816, 17zsubcld 12696 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝑚 ∈ ℤ ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ)
1918ex 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑚 ∈ ℤ → ((𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ))
20 elfzelz 13543 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑚 ∈ (0...𝑁) → 𝑚 ∈ ℤ)
2119, 20syl11 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑚 ∈ (0...𝑁) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ))
22213adant1 1146 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((0 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑚 ∈ (0...𝑁) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ))
2322adantr 485 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((0 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (0 ≤ 𝐾𝐾𝑁)) → (𝑚 ∈ (0...𝑁) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ))
2414, 23sylbi 220 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ))
2524ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) → (𝑚 ∈ (0...𝑁) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ))
2625imp 411 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → ((𝑚 + 𝑁) − 𝐾) ∈ ℤ)
27 2cshw 14840 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑌 ∈ Word 𝑉𝐾 ∈ ℤ ∧ ((𝑚 + 𝑁) − 𝐾) ∈ ℤ) → ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)) = (𝑌 cyclShift (𝐾 + ((𝑚 + 𝑁) − 𝐾))))
2810, 13, 26, 27syl3anc 1394 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)) = (𝑌 cyclShift (𝐾 + ((𝑚 + 𝑁) − 𝐾))))
2917, 18zaddcld 12695 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝑚 ∈ ℤ ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ)
3029ex 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑚 ∈ ℤ → ((𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ))
3130, 20syl11 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑚 ∈ (0...𝑁) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ))
32313adant1 1146 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((0 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑚 ∈ (0...𝑁) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ))
3332adantr 485 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((0 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (0 ≤ 𝐾𝐾𝑁)) → (𝑚 ∈ (0...𝑁) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ))
3414, 33sylbi 220 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ))
3534ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) → (𝑚 ∈ (0...𝑁) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ))
3635imp 411 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ)
37 cshwsublen 14823 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑌 ∈ Word 𝑉 ∧ (𝐾 + ((𝑚 + 𝑁) − 𝐾)) ∈ ℤ) → (𝑌 cyclShift (𝐾 + ((𝑚 + 𝑁) − 𝐾))) = (𝑌 cyclShift ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌))))
3810, 36, 37syl2anc 595 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → (𝑌 cyclShift (𝐾 + ((𝑚 + 𝑁) − 𝐾))) = (𝑌 cyclShift ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌))))
3928, 38eqtrd 2800 . . . . . . . . . . . . . . . . . . . . 21 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)) = (𝑌 cyclShift ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌))))
40 elfz2nn0 13637 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝐾 ∈ (0...𝑁) ↔ (𝐾 ∈ ℕ0𝑁 ∈ ℕ0𝐾𝑁))
41 nn0cn 12505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (𝑚 ∈ ℕ0𝑚 ∈ ℂ)
42 nn0cn 12505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝐾 ∈ ℕ0𝐾 ∈ ℂ)
43 nn0cn 12505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝑁 ∈ ℕ0𝑁 ∈ ℂ)
4442, 43anim12i 624 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝐾 ∈ ℕ0𝑁 ∈ ℕ0) → (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ))
45 simprl 782 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝑚 ∈ ℂ ∧ (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ)) → 𝐾 ∈ ℂ)
46 addcl 11170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑚 ∈ ℂ ∧ 𝑁 ∈ ℂ) → (𝑚 + 𝑁) ∈ ℂ)
4746adantrl 728 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝑚 ∈ ℂ ∧ (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ)) → (𝑚 + 𝑁) ∈ ℂ)
4845, 47pncan3d 11560 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝑚 ∈ ℂ ∧ (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ)) → (𝐾 + ((𝑚 + 𝑁) − 𝐾)) = (𝑚 + 𝑁))
4948oveq1d 7415 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝑚 ∈ ℂ ∧ (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ)) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = ((𝑚 + 𝑁) − 𝑁))
50 pncan 11451 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝑚 ∈ ℂ ∧ 𝑁 ∈ ℂ) → ((𝑚 + 𝑁) − 𝑁) = 𝑚)
5150adantrl 728 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝑚 ∈ ℂ ∧ (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ)) → ((𝑚 + 𝑁) − 𝑁) = 𝑚)
5249, 51eqtrd 2800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝑚 ∈ ℂ ∧ (𝐾 ∈ ℂ ∧ 𝑁 ∈ ℂ)) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚)
5341, 44, 52syl2an 607 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝑚 ∈ ℕ0 ∧ (𝐾 ∈ ℕ0𝑁 ∈ ℕ0)) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚)
5453ex 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑚 ∈ ℕ0 → ((𝐾 ∈ ℕ0𝑁 ∈ ℕ0) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚))
55 elfznn0 13639 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑚 ∈ (0...𝑁) → 𝑚 ∈ ℕ0)
5654, 55syl11 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝐾 ∈ ℕ0𝑁 ∈ ℕ0) → (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚))
57563adant3 1148 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐾 ∈ ℕ0𝑁 ∈ ℕ0𝐾𝑁) → (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚))
5840, 57sylbi 220 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚))
5958adantr 485 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚))
60 oveq2 7408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((♯‘𝑌) = 𝑁 → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁))
6160eqeq1d 2767 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((♯‘𝑌) = 𝑁 → (((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚 ↔ ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚))
6261imbi2d 343 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((♯‘𝑌) = 𝑁 → ((𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚) ↔ (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚)))
6362adantl 486 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → ((𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚) ↔ (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚)))
6463adantl 486 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → ((𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚) ↔ (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − 𝑁) = 𝑚)))
6559, 64mpbird 260 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚))
6665adantr 485 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) → (𝑚 ∈ (0...𝑁) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚))
6766imp 411 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌)) = 𝑚)
6867oveq2d 7416 . . . . . . . . . . . . . . . . . . . . 21 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → (𝑌 cyclShift ((𝐾 + ((𝑚 + 𝑁) − 𝐾)) − (♯‘𝑌))) = (𝑌 cyclShift 𝑚))
6939, 68eqtr2d 2801 . . . . . . . . . . . . . . . . . . . 20 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) → (𝑌 cyclShift 𝑚) = ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)))
7069adantr 485 . . . . . . . . . . . . . . . . . . 19 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑌 cyclShift 𝑚) = ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)))
71 oveq1 7407 . . . . . . . . . . . . . . . . . . . 20 (𝑋 = (𝑌 cyclShift 𝐾) → (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾)) = ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)))
7271adantl 486 . . . . . . . . . . . . . . . . . . 19 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾)) = ((𝑌 cyclShift 𝐾) cyclShift ((𝑚 + 𝑁) − 𝐾)))
7370, 72eqtr4d 2803 . . . . . . . . . . . . . . . . . 18 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑌 cyclShift 𝑚) = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾)))
7473exp41 439 . . . . . . . . . . . . . . . . 17 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → ((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) → (𝑚 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑌 cyclShift 𝑚) = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾))))))
7574com24 96 . . . . . . . . . . . . . . . 16 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑚 ∈ (0...𝑁) → ((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) → (𝑌 cyclShift 𝑚) = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾))))))
7675imp41 430 . . . . . . . . . . . . . . 15 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) → (𝑌 cyclShift 𝑚) = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾)))
7776eqeq2d 2776 . . . . . . . . . . . . . 14 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) → (𝑍 = (𝑌 cyclShift 𝑚) ↔ 𝑍 = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾))))
7877biimpd 232 . . . . . . . . . . . . 13 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ (¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚)) → (𝑍 = (𝑌 cyclShift 𝑚) → 𝑍 = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾))))
7978impancom 456 . . . . . . . . . . . 12 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) → 𝑍 = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾))))
8079impcom 412 . . . . . . . . . . 11 (((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) ∧ ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚))) → 𝑍 = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾)))
81 oveq2 7408 . . . . . . . . . . . 12 (𝑛 = ((𝑚 + 𝑁) − 𝐾) → (𝑋 cyclShift 𝑛) = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾)))
8281rspceeqv 3607 . . . . . . . . . . 11 ((((𝑚 + 𝑁) − 𝐾) ∈ (0...𝑁) ∧ 𝑍 = (𝑋 cyclShift ((𝑚 + 𝑁) − 𝐾))) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))
838, 80, 82syl2anc 595 . . . . . . . . . 10 (((¬ 𝑚 = 0 ∧ ¬ 𝐾𝑚) ∧ ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚))) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))
8483exp31 424 . . . . . . . . 9 𝑚 = 0 → (¬ 𝐾𝑚 → (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))
85 oveq2 7408 . . . . . . . . . . . . . . 15 (𝑚 = 0 → (𝑌 cyclShift 𝑚) = (𝑌 cyclShift 0))
8685eqeq2d 2776 . . . . . . . . . . . . . 14 (𝑚 = 0 → (𝑍 = (𝑌 cyclShift 𝑚) ↔ 𝑍 = (𝑌 cyclShift 0)))
87 cshw0 14821 . . . . . . . . . . . . . . . . . . . . 21 (𝑌 ∈ Word 𝑉 → (𝑌 cyclShift 0) = 𝑌)
8887adantr 485 . . . . . . . . . . . . . . . . . . . 20 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (𝑌 cyclShift 0) = 𝑌)
8988eqeq2d 2776 . . . . . . . . . . . . . . . . . . 19 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (𝑍 = (𝑌 cyclShift 0) ↔ 𝑍 = 𝑌))
90 fznn0sub2 13654 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝐾 ∈ (0...𝑁) → (𝑁𝐾) ∈ (0...𝑁))
9190adantl 486 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) → (𝑁𝐾) ∈ (0...𝑁))
92 oveq1 7407 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((♯‘𝑌) = 𝑁 → ((♯‘𝑌) − 𝐾) = (𝑁𝐾))
9392eleq1d 2850 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((♯‘𝑌) = 𝑁 → (((♯‘𝑌) − 𝐾) ∈ (0...𝑁) ↔ (𝑁𝐾) ∈ (0...𝑁)))
9493ad2antlr 739 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) → (((♯‘𝑌) − 𝐾) ∈ (0...𝑁) ↔ (𝑁𝐾) ∈ (0...𝑁)))
9591, 94mpbird 260 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) → ((♯‘𝑌) − 𝐾) ∈ (0...𝑁))
9695adantr 485 . . . . . . . . . . . . . . . . . . . . . . . 24 ((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → ((♯‘𝑌) − 𝐾) ∈ (0...𝑁))
97 oveq1 7407 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑋 = (𝑌 cyclShift 𝐾) → (𝑋 cyclShift ((♯‘𝑌) − 𝐾)) = ((𝑌 cyclShift 𝐾) cyclShift ((♯‘𝑌) − 𝐾)))
98 simpl 487 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → 𝑌 ∈ Word 𝑉)
99 2cshwid 14841 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑌 ∈ Word 𝑉𝐾 ∈ ℤ) → ((𝑌 cyclShift 𝐾) cyclShift ((♯‘𝑌) − 𝐾)) = 𝑌)
10098, 11, 99syl2an 607 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) → ((𝑌 cyclShift 𝐾) cyclShift ((♯‘𝑌) − 𝐾)) = 𝑌)
10197, 100sylan9eqr 2822 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑋 cyclShift ((♯‘𝑌) − 𝐾)) = 𝑌)
102101eqcomd 2771 . . . . . . . . . . . . . . . . . . . . . . . 24 ((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → 𝑌 = (𝑋 cyclShift ((♯‘𝑌) − 𝐾)))
103 oveq2 7408 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑛 = ((♯‘𝑌) − 𝐾) → (𝑋 cyclShift 𝑛) = (𝑋 cyclShift ((♯‘𝑌) − 𝐾)))
104103rspceeqv 3607 . . . . . . . . . . . . . . . . . . . . . . . 24 ((((♯‘𝑌) − 𝐾) ∈ (0...𝑁) ∧ 𝑌 = (𝑋 cyclShift ((♯‘𝑌) − 𝐾))) → ∃𝑛 ∈ (0...𝑁)𝑌 = (𝑋 cyclShift 𝑛))
10596, 102, 104syl2anc 595 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → ∃𝑛 ∈ (0...𝑁)𝑌 = (𝑋 cyclShift 𝑛))
106105adantr 485 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑍 = 𝑌) → ∃𝑛 ∈ (0...𝑁)𝑌 = (𝑋 cyclShift 𝑛))
107 eqeq1 2769 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑍 = 𝑌 → (𝑍 = (𝑋 cyclShift 𝑛) ↔ 𝑌 = (𝑋 cyclShift 𝑛)))
108107rexbidv 3189 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑍 = 𝑌 → (∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛) ↔ ∃𝑛 ∈ (0...𝑁)𝑌 = (𝑋 cyclShift 𝑛)))
109108adantl 486 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑍 = 𝑌) → (∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛) ↔ ∃𝑛 ∈ (0...𝑁)𝑌 = (𝑋 cyclShift 𝑛)))
110106, 109mpbird 260 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) ∧ 𝐾 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑍 = 𝑌) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))
111110exp41 439 . . . . . . . . . . . . . . . . . . . 20 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (𝐾 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑍 = 𝑌 → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
112111com24 96 . . . . . . . . . . . . . . . . . . 19 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (𝑍 = 𝑌 → (𝑋 = (𝑌 cyclShift 𝐾) → (𝐾 ∈ (0...𝑁) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
11389, 112sylbid 243 . . . . . . . . . . . . . . . . . 18 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (𝑍 = (𝑌 cyclShift 0) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝐾 ∈ (0...𝑁) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
114113com24 96 . . . . . . . . . . . . . . . . 17 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (𝐾 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑍 = (𝑌 cyclShift 0) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
115114impcom 412 . . . . . . . . . . . . . . . 16 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑍 = (𝑌 cyclShift 0) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))
116115com13 89 . . . . . . . . . . . . . . 15 (𝑍 = (𝑌 cyclShift 0) → (𝑋 = (𝑌 cyclShift 𝐾) → ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))
117116a1d 26 . . . . . . . . . . . . . 14 (𝑍 = (𝑌 cyclShift 0) → (𝑚 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
11886, 117biimtrdi 256 . . . . . . . . . . . . 13 (𝑚 = 0 → (𝑍 = (𝑌 cyclShift 𝑚) → (𝑚 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))))
119118com24 96 . . . . . . . . . . . 12 (𝑚 = 0 → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑚 ∈ (0...𝑁) → (𝑍 = (𝑌 cyclShift 𝑚) → ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))))
120119com15 102 . . . . . . . . . . 11 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑚 ∈ (0...𝑁) → (𝑍 = (𝑌 cyclShift 𝑚) → (𝑚 = 0 → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))))
121120imp41 430 . . . . . . . . . 10 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → (𝑚 = 0 → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
122121com12 33 . . . . . . . . 9 (𝑚 = 0 → (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
123 difelfzle 13660 . . . . . . . . . . . . . . . 16 ((𝐾 ∈ (0...𝑁) ∧ 𝑚 ∈ (0...𝑁) ∧ 𝐾𝑚) → (𝑚𝐾) ∈ (0...𝑁))
1241233exp 1135 . . . . . . . . . . . . . . 15 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → (𝐾𝑚 → (𝑚𝐾) ∈ (0...𝑁))))
125124ad2antrr 738 . . . . . . . . . . . . . 14 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑚 ∈ (0...𝑁) → (𝐾𝑚 → (𝑚𝐾) ∈ (0...𝑁))))
126125imp 411 . . . . . . . . . . . . 13 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) → (𝐾𝑚 → (𝑚𝐾) ∈ (0...𝑁)))
127126adantr 485 . . . . . . . . . . . 12 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → (𝐾𝑚 → (𝑚𝐾) ∈ (0...𝑁)))
128127impcom 412 . . . . . . . . . . 11 ((𝐾𝑚 ∧ ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚))) → (𝑚𝐾) ∈ (0...𝑁))
1299ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → 𝑌 ∈ Word 𝑉)
13012ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → 𝐾 ∈ ℤ)
131 zsubcl 12627 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑚 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑚𝐾) ∈ ℤ)
132131ex 417 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑚 ∈ ℤ → (𝐾 ∈ ℤ → (𝑚𝐾) ∈ ℤ))
13320, 11, 132syl2imc 42 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → (𝑚𝐾) ∈ ℤ))
134133ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) → (𝑚 ∈ (0...𝑁) → (𝑚𝐾) ∈ ℤ))
135134imp 411 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → (𝑚𝐾) ∈ ℤ)
136 2cshw 14840 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑌 ∈ Word 𝑉𝐾 ∈ ℤ ∧ (𝑚𝐾) ∈ ℤ) → ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾)) = (𝑌 cyclShift (𝐾 + (𝑚𝐾))))
137129, 130, 135, 136syl3anc 1394 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾)) = (𝑌 cyclShift (𝐾 + (𝑚𝐾))))
138 zcn 12587 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝐾 ∈ ℤ → 𝐾 ∈ ℂ)
13920zcnd 12692 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑚 ∈ (0...𝑁) → 𝑚 ∈ ℂ)
140 pncan3 11453 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝐾 ∈ ℂ ∧ 𝑚 ∈ ℂ) → (𝐾 + (𝑚𝐾)) = 𝑚)
141138, 139, 140syl2anr 608 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑚 ∈ (0...𝑁) ∧ 𝐾 ∈ ℤ) → (𝐾 + (𝑚𝐾)) = 𝑚)
142141ex 417 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑚 ∈ (0...𝑁) → (𝐾 ∈ ℤ → (𝐾 + (𝑚𝐾)) = 𝑚))
14311, 142syl5com 32 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝐾 ∈ (0...𝑁) → (𝑚 ∈ (0...𝑁) → (𝐾 + (𝑚𝐾)) = 𝑚))
144143ad2antrr 738 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) → (𝑚 ∈ (0...𝑁) → (𝐾 + (𝑚𝐾)) = 𝑚))
145144imp 411 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → (𝐾 + (𝑚𝐾)) = 𝑚)
146145oveq2d 7416 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → (𝑌 cyclShift (𝐾 + (𝑚𝐾))) = (𝑌 cyclShift 𝑚))
147137, 146eqtr2d 2801 . . . . . . . . . . . . . . . . . . . . 21 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) → (𝑌 cyclShift 𝑚) = ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾)))
148147adantr 485 . . . . . . . . . . . . . . . . . . . 20 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑌 cyclShift 𝑚) = ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾)))
149 oveq1 7407 . . . . . . . . . . . . . . . . . . . . . 22 (𝑋 = (𝑌 cyclShift 𝐾) → (𝑋 cyclShift (𝑚𝐾)) = ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾)))
150149eqeq2d 2776 . . . . . . . . . . . . . . . . . . . . 21 (𝑋 = (𝑌 cyclShift 𝐾) → ((𝑌 cyclShift 𝑚) = (𝑋 cyclShift (𝑚𝐾)) ↔ (𝑌 cyclShift 𝑚) = ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾))))
151150adantl 486 . . . . . . . . . . . . . . . . . . . 20 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → ((𝑌 cyclShift 𝑚) = (𝑋 cyclShift (𝑚𝐾)) ↔ (𝑌 cyclShift 𝑚) = ((𝑌 cyclShift 𝐾) cyclShift (𝑚𝐾))))
152148, 151mpbird 260 . . . . . . . . . . . . . . . . . . 19 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑌 cyclShift 𝑚) = (𝑋 cyclShift (𝑚𝐾)))
153152eqeq2d 2776 . . . . . . . . . . . . . . . . . 18 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑍 = (𝑌 cyclShift 𝑚) ↔ 𝑍 = (𝑋 cyclShift (𝑚𝐾))))
154153biimpd 232 . . . . . . . . . . . . . . . . 17 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝐾𝑚) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (𝑍 = (𝑌 cyclShift 𝑚) → 𝑍 = (𝑋 cyclShift (𝑚𝐾))))
155154exp41 439 . . . . . . . . . . . . . . . 16 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝐾𝑚 → (𝑚 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑍 = (𝑌 cyclShift 𝑚) → 𝑍 = (𝑋 cyclShift (𝑚𝐾)))))))
156155com24 96 . . . . . . . . . . . . . . 15 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑋 = (𝑌 cyclShift 𝐾) → (𝑚 ∈ (0...𝑁) → (𝐾𝑚 → (𝑍 = (𝑌 cyclShift 𝑚) → 𝑍 = (𝑋 cyclShift (𝑚𝐾)))))))
157156imp31 422 . . . . . . . . . . . . . 14 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) → (𝐾𝑚 → (𝑍 = (𝑌 cyclShift 𝑚) → 𝑍 = (𝑋 cyclShift (𝑚𝐾)))))
158157com23 87 . . . . . . . . . . . . 13 ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) → (𝑍 = (𝑌 cyclShift 𝑚) → (𝐾𝑚𝑍 = (𝑋 cyclShift (𝑚𝐾)))))
159158imp 411 . . . . . . . . . . . 12 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → (𝐾𝑚𝑍 = (𝑋 cyclShift (𝑚𝐾))))
160159impcom 412 . . . . . . . . . . 11 ((𝐾𝑚 ∧ ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚))) → 𝑍 = (𝑋 cyclShift (𝑚𝐾)))
161 oveq2 7408 . . . . . . . . . . . 12 (𝑛 = (𝑚𝐾) → (𝑋 cyclShift 𝑛) = (𝑋 cyclShift (𝑚𝐾)))
162161rspceeqv 3607 . . . . . . . . . . 11 (((𝑚𝐾) ∈ (0...𝑁) ∧ 𝑍 = (𝑋 cyclShift (𝑚𝐾))) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))
163128, 160, 162syl2anc 595 . . . . . . . . . 10 ((𝐾𝑚 ∧ ((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚))) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))
164163ex 417 . . . . . . . . 9 (𝐾𝑚 → (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
16584, 122, 164pm2.61ii 185 . . . . . . . 8 (((((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) ∧ 𝑚 ∈ (0...𝑁)) ∧ 𝑍 = (𝑌 cyclShift 𝑚)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))
166165rexlimdva2 3168 . . . . . . 7 (((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) ∧ 𝑋 = (𝑌 cyclShift 𝐾)) → (∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
167166ex 417 . . . . . 6 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (𝑋 = (𝑌 cyclShift 𝐾) → (∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))
168167com23 87 . . . . 5 ((𝐾 ∈ (0...𝑁) ∧ (𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁)) → (∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚) → (𝑋 = (𝑌 cyclShift 𝐾) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛))))
169168ex 417 . . . 4 (𝐾 ∈ (0...𝑁) → ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → (∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚) → (𝑋 = (𝑌 cyclShift 𝐾) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
170169com24 96 . . 3 (𝐾 ∈ (0...𝑁) → (𝑋 = (𝑌 cyclShift 𝐾) → (∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚) → ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))))
1711703imp 1126 . 2 ((𝐾 ∈ (0...𝑁) ∧ 𝑋 = (𝑌 cyclShift 𝐾) ∧ ∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚)) → ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
172171com12 33 1 ((𝑌 ∈ Word 𝑉 ∧ (♯‘𝑌) = 𝑁) → ((𝐾 ∈ (0...𝑁) ∧ 𝑋 = (𝑌 cyclShift 𝐾) ∧ ∃𝑚 ∈ (0...𝑁)𝑍 = (𝑌 cyclShift 𝑚)) → ∃𝑛 ∈ (0...𝑁)𝑍 = (𝑋 cyclShift 𝑛)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 209  wa 400  w3a 1101   = wceq 1563  wcel 2145  wrex 3089   class class class wbr 5105  cfv 6525  (class class class)co 7400  cc 11086  0cc0 11088   + caddc 11091  cle 11232  cmin 11429  0cn0 12495  cz 12582  ...cfz 13526  chash 14357  Word cword 14540   cyclShift ccsh 14815
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1818  ax-4 1832  ax-5 1933  ax-6 1990  ax-7 2031  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2737  ax-rep 5232  ax-sep 5251  ax-nul 5261  ax-pow 5327  ax-pr 5395  ax-un 7722  ax-cnex 11144  ax-resscn 11145  ax-1cn 11146  ax-icn 11147  ax-addcl 11148  ax-addrcl 11149  ax-mulcl 11150  ax-mulrcl 11151  ax-mulcom 11152  ax-addass 11153  ax-mulass 11154  ax-distr 11155  ax-i2m1 11156  ax-1ne0 11157  ax-1rid 11158  ax-rnegex 11159  ax-rrecex 11160  ax-cnre 11161  ax-pre-lttri 11162  ax-pre-lttrn 11163  ax-pre-ltadd 11164  ax-pre-mulgt0 11165  ax-pre-sup 11166
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1566  df-fal 1576  df-ex 1803  df-nf 1807  df-sb 2094  df-mo 2569  df-eu 2599  df-clab 2744  df-cleq 2757  df-clel 2840  df-nfc 2914  df-ne 2961  df-nel 3065  df-ral 3080  df-rex 3090  df-rmo 3370  df-reu 3371  df-rab 3418  df-v 3459  df-sbc 3748  df-csb 3856  df-dif 3910  df-un 3912  df-in 3914  df-ss 3924  df-pss 3927  df-nul 4289  df-if 4484  df-pw 4560  df-sn 4586  df-pr 4588  df-op 4592  df-uni 4869  df-int 4909  df-iun 4954  df-br 5106  df-opab 5168  df-mpt 5187  df-tr 5213  df-id 5547  df-eprel 5552  df-po 5560  df-so 5561  df-fr 5605  df-we 5607  df-xp 5658  df-rel 5659  df-cnv 5660  df-co 5661  df-dm 5662  df-rn 5663  df-res 5664  df-ima 5665  df-pred 6292  df-ord 6353  df-on 6354  df-lim 6355  df-suc 6356  df-iota 6481  df-fun 6527  df-fn 6528  df-f 6529  df-f1 6530  df-fo 6531  df-f1o 6532  df-fv 6533  df-riota 7357  df-ov 7403  df-oprab 7404  df-mpo 7405  df-om 7851  df-1st 7974  df-2nd 7975  df-frecs 8266  df-wrecs 8297  df-recs 8346  df-rdg 8385  df-1o 8441  df-er 8682  df-en 8932  df-dom 8933  df-sdom 8934  df-fin 8935  df-sup 9390  df-inf 9391  df-card 9913  df-pnf 11233  df-mnf 11234  df-xr 11235  df-ltxr 11236  df-le 11237  df-sub 11431  df-neg 11432  df-div 11860  df-nn 12225  df-2 12294  df-n0 12496  df-z 12583  df-uz 12854  df-rp 13008  df-fz 13527  df-fzo 13674  df-fl 13816  df-mod 13894  df-hash 14358  df-word 14541  df-concat 14598  df-substr 14669  df-pfx 14699  df-csh 14816
This theorem is referenced by:  eleclclwwlknlem1  30320
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