Metamath Proof Explorer


Theorem modsumfzodifsn

Description: The sum of a number within a half-open range of positive integers is an element of the corresponding open range of nonnegative integers with one excluded integer modulo the excluded integer. (Contributed by AV, 19-Mar-2021)

Ref Expression
Assertion modsumfzodifsn ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J mod N ∈ 0 ..^ N ∖ J

Proof

Step Hyp Ref Expression
1 elfzo0 ⊢ J ∈ 0 ..^ N ↔ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N
2 elfzoelz ⊢ K ∈ 1 ..^ N → K ∈ ℤ
3 2 zred ⊢ K ∈ 1 ..^ N → K ∈ ℝ
4 nn0re ⊢ J ∈ ℕ 0 → J ∈ ℝ
5 4 3ad2ant1 ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → J ∈ ℝ
6 readdcl ⊢ K ∈ ℝ ∧ J ∈ ℝ → K + J ∈ ℝ
7 3 5 6 syl2anr ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N ∧ K ∈ 1 ..^ N → K + J ∈ ℝ
8 nnrp ⊢ N ∈ ℕ → N ∈ ℝ +
9 8 3ad2ant2 ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → N ∈ ℝ +
10 9 adantr ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N ∧ K ∈ 1 ..^ N → N ∈ ℝ +
11 7 10 jca ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N ∧ K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ +
12 1 11 sylanb ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ +
13 12 adantl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ +
14 elfzo1 ⊢ K ∈ 1 ..^ N ↔ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N
15 nnnn0 ⊢ K ∈ ℕ → K ∈ ℕ 0
16 15 3ad2ant1 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ∈ ℕ 0
17 14 16 sylbi ⊢ K ∈ 1 ..^ N → K ∈ ℕ 0
18 elfzonn0 ⊢ J ∈ 0 ..^ N → J ∈ ℕ 0
19 nn0addcl ⊢ K ∈ ℕ 0 ∧ J ∈ ℕ 0 → K + J ∈ ℕ 0
20 17 18 19 syl2anr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℕ 0
21 20 adantl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℕ 0
22 21 nn0ge0d ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → 0 ≤ K + J
23 simpl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J < N
24 modid ⊢ K + J ∈ ℝ ∧ N ∈ ℝ + ∧ 0 ≤ K + J ∧ K + J < N → K + J mod N = K + J
25 13 22 23 24 syl12anc ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J mod N = K + J
26 simp2 ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → N ∈ ℕ
27 1 26 sylbi ⊢ J ∈ 0 ..^ N → N ∈ ℕ
28 27 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℕ
29 28 adantl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℕ
30 elfzo0 ⊢ K + J ∈ 0 ..^ N ↔ K + J ∈ ℕ 0 ∧ N ∈ ℕ ∧ K + J < N
31 21 29 23 30 syl3anbrc ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ 0 ..^ N
32 2 zcnd ⊢ K ∈ 1 ..^ N → K ∈ ℂ
33 32 adantl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K ∈ ℂ
34 0cnd ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → 0 ∈ ℂ
35 elfzoelz ⊢ J ∈ 0 ..^ N → J ∈ ℤ
36 35 zcnd ⊢ J ∈ 0 ..^ N → J ∈ ℂ
37 36 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → J ∈ ℂ
38 nnne0 ⊢ K ∈ ℕ → K ≠ 0
39 38 3ad2ant1 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ≠ 0
40 14 39 sylbi ⊢ K ∈ 1 ..^ N → K ≠ 0
41 40 adantl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K ≠ 0
42 33 34 37 41 addneintr2d ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ≠ 0 + J
43 42 adantl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ≠ 0 + J
44 37 adantl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → J ∈ ℂ
45 addlid ⊢ J ∈ ℂ → 0 + J = J
46 45 eqcomd ⊢ J ∈ ℂ → J = 0 + J
47 44 46 syl ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → J = 0 + J
48 43 47 neeqtrrd ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ≠ J
49 eldifsn ⊢ K + J ∈ 0 ..^ N ∖ J ↔ K + J ∈ 0 ..^ N ∧ K + J ≠ J
50 31 48 49 sylanbrc ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ 0 ..^ N ∖ J
51 25 50 eqeltrd ⊢ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J mod N ∈ 0 ..^ N ∖ J
52 elfzoel2 ⊢ J ∈ 0 ..^ N → N ∈ ℤ
53 52 zcnd ⊢ J ∈ 0 ..^ N → N ∈ ℂ
54 53 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℂ
55 54 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℂ
56 55 mulm1d ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → -1 ⋅ N = − N
57 56 oveq2d ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J + -1 ⋅ N = K + J + -N
58 zaddcl ⊢ K ∈ ℤ ∧ J ∈ ℤ → K + J ∈ ℤ
59 2 35 58 syl2anr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℤ
60 59 zcnd ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℂ
61 60 54 jca ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℂ ∧ N ∈ ℂ
62 61 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℂ ∧ N ∈ ℂ
63 negsub ⊢ K + J ∈ ℂ ∧ N ∈ ℂ → K + J + -N = K + J - N
64 62 63 syl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J + -N = K + J - N
65 57 64 eqtrd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J + -1 ⋅ N = K + J - N
66 65 oveq1d ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J + -1 ⋅ N mod N = K + J - N mod N
67 2 35 58 syl2an ⊢ K ∈ 1 ..^ N ∧ J ∈ 0 ..^ N → K + J ∈ ℤ
68 67 zred ⊢ K ∈ 1 ..^ N ∧ J ∈ 0 ..^ N → K + J ∈ ℝ
69 68 ancoms ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℝ
70 52 zred ⊢ J ∈ 0 ..^ N → N ∈ ℝ
71 70 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℝ
72 69 71 resubcld ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ ℝ
73 72 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ ℝ
74 26 nnrpd ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → N ∈ ℝ +
75 1 74 sylbi ⊢ J ∈ 0 ..^ N → N ∈ ℝ +
76 75 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℝ +
77 76 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℝ +
78 nnre ⊢ K ∈ ℕ → K ∈ ℝ
79 78 3ad2ant1 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ∈ ℝ
80 79 adantl ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ∈ ℝ
81 4 adantr ⊢ J ∈ ℕ 0 ∧ J < N → J ∈ ℝ
82 81 adantr ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → J ∈ ℝ
83 nnre ⊢ N ∈ ℕ → N ∈ ℝ
84 83 3ad2ant2 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → N ∈ ℝ
85 84 adantl ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → N ∈ ℝ
86 simp3 ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → N ∈ ℝ
87 6 3adant3 ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → K + J ∈ ℝ
88 86 87 lenltd ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → N ≤ K + J ↔ ¬ K + J < N
89 88 biimprd ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → ¬ K + J < N → N ≤ K + J
90 87 86 subge0d ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → 0 ≤ K + J - N ↔ N ≤ K + J
91 89 90 sylibrd ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → ¬ K + J < N → 0 ≤ K + J - N
92 80 82 85 91 syl3anc ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → ¬ K + J < N → 0 ≤ K + J - N
93 81 79 anim12ci ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ∈ ℝ ∧ J ∈ ℝ
94 83 83 jca ⊢ N ∈ ℕ → N ∈ ℝ ∧ N ∈ ℝ
95 94 3ad2ant2 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → N ∈ ℝ ∧ N ∈ ℝ
96 95 adantl ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → N ∈ ℝ ∧ N ∈ ℝ
97 simpr ⊢ J ∈ ℕ 0 ∧ J < N → J < N
98 simp3 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K < N
99 97 98 anim12ci ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K < N ∧ J < N
100 93 96 99 jca31 ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
101 lt2add ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ → K < N ∧ J < N → K + J < N + N
102 101 imp ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N → K + J < N + N
103 100 102 syl ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K + J < N + N
104 79 81 6 syl2anr ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K + J ∈ ℝ
105 ltsubadd ⊢ K + J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ → K + J - N < N ↔ K + J < N + N
106 104 85 85 105 syl3anc ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K + J - N < N ↔ K + J < N + N
107 103 106 mpbird ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K + J - N < N
108 92 107 jctird ⊢ J ∈ ℕ 0 ∧ J < N ∧ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → ¬ K + J < N → 0 ≤ K + J - N ∧ K + J - N < N
109 108 ex ⊢ J ∈ ℕ 0 ∧ J < N → K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → ¬ K + J < N → 0 ≤ K + J - N ∧ K + J - N < N
110 14 109 biimtrid ⊢ J ∈ ℕ 0 ∧ J < N → K ∈ 1 ..^ N → ¬ K + J < N → 0 ≤ K + J - N ∧ K + J - N < N
111 110 3adant2 ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → K ∈ 1 ..^ N → ¬ K + J < N → 0 ≤ K + J - N ∧ K + J - N < N
112 1 111 sylbi ⊢ J ∈ 0 ..^ N → K ∈ 1 ..^ N → ¬ K + J < N → 0 ≤ K + J - N ∧ K + J - N < N
113 112 imp ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → ¬ K + J < N → 0 ≤ K + J - N ∧ K + J - N < N
114 113 impcom ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → 0 ≤ K + J - N ∧ K + J - N < N
115 73 77 114 jca31 ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ ℝ ∧ N ∈ ℝ + ∧ 0 ≤ K + J - N ∧ K + J - N < N
116 modid ⊢ K + J - N ∈ ℝ ∧ N ∈ ℝ + ∧ 0 ≤ K + J - N ∧ K + J - N < N → K + J - N mod N = K + J - N
117 115 116 syl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N mod N = K + J - N
118 66 117 eqtrd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J + -1 ⋅ N mod N = K + J - N
119 118 eqcomd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N = K + J + -1 ⋅ N mod N
120 1 9 sylbi ⊢ J ∈ 0 ..^ N → N ∈ ℝ +
121 120 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℝ +
122 neg1z ⊢ − 1 ∈ ℤ
123 122 a1i ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → − 1 ∈ ℤ
124 modcyc ⊢ K + J ∈ ℝ ∧ N ∈ ℝ + ∧ − 1 ∈ ℤ → K + J + -1 ⋅ N mod N = K + J mod N
125 69 121 123 124 syl2an23an ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J + -1 ⋅ N mod N = K + J mod N
126 119 125 eqtrd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N = K + J mod N
127 126 eqcomd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J mod N = K + J - N
128 52 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℤ
129 59 128 zsubcld ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ ℤ
130 129 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ ℤ
131 3 adantl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K ∈ ℝ
132 35 zred ⊢ J ∈ 0 ..^ N → J ∈ ℝ
133 132 adantr ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → J ∈ ℝ
134 90 biimprd ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → N ≤ K + J → 0 ≤ K + J - N
135 88 134 sylbird ⊢ K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ → ¬ K + J < N → 0 ≤ K + J - N
136 131 133 71 135 syl3anc ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → ¬ K + J < N → 0 ≤ K + J - N
137 136 impcom ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → 0 ≤ K + J - N
138 elnn0z ⊢ K + J - N ∈ ℕ 0 ↔ K + J - N ∈ ℤ ∧ 0 ≤ K + J - N
139 130 137 138 sylanbrc ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ ℕ 0
140 28 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → N ∈ ℕ
141 100 expcom ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → J ∈ ℕ 0 ∧ J < N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
142 14 141 sylbi ⊢ K ∈ 1 ..^ N → J ∈ ℕ 0 ∧ J < N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
143 142 com12 ⊢ J ∈ ℕ 0 ∧ J < N → K ∈ 1 ..^ N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
144 143 3adant2 ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → K ∈ 1 ..^ N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
145 1 144 sylbi ⊢ J ∈ 0 ..^ N → K ∈ 1 ..^ N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
146 145 imp ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K ∈ ℝ ∧ J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ ∧ K < N ∧ J < N
147 146 102 syl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J < N + N
148 4 adantr ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ → J ∈ ℝ
149 3 148 6 syl2anr ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ K ∈ 1 ..^ N → K + J ∈ ℝ
150 83 adantl ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ → N ∈ ℝ
151 150 adantr ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ K ∈ 1 ..^ N → N ∈ ℝ
152 149 151 151 3jca ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ
153 152 ex ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ → K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ
154 153 3adant3 ⊢ J ∈ ℕ 0 ∧ N ∈ ℕ ∧ J < N → K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ
155 1 154 sylbi ⊢ J ∈ 0 ..^ N → K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ
156 155 imp ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J ∈ ℝ ∧ N ∈ ℝ ∧ N ∈ ℝ
157 156 105 syl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N < N ↔ K + J < N + N
158 147 157 mpbird ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N < N
159 158 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N < N
160 elfzo0 ⊢ K + J - N ∈ 0 ..^ N ↔ K + J - N ∈ ℕ 0 ∧ N ∈ ℕ ∧ K + J - N < N
161 139 140 159 160 syl3anbrc ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ 0 ..^ N
162 nncn ⊢ K ∈ ℕ → K ∈ ℂ
163 nncn ⊢ N ∈ ℕ → N ∈ ℂ
164 subcl ⊢ K ∈ ℂ ∧ N ∈ ℂ → K − N ∈ ℂ
165 162 163 164 syl2an ⊢ K ∈ ℕ ∧ N ∈ ℕ → K − N ∈ ℂ
166 165 3adant3 ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K − N ∈ ℂ
167 14 166 sylbi ⊢ K ∈ 1 ..^ N → K − N ∈ ℂ
168 167 adantl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K − N ∈ ℂ
169 168 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K − N ∈ ℂ
170 0cnd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → 0 ∈ ℂ
171 37 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → J ∈ ℂ
172 elfzoel2 ⊢ K ∈ 1 ..^ N → N ∈ ℤ
173 172 zcnd ⊢ K ∈ 1 ..^ N → N ∈ ℂ
174 79 98 ltned ⊢ K ∈ ℕ ∧ N ∈ ℕ ∧ K < N → K ≠ N
175 14 174 sylbi ⊢ K ∈ 1 ..^ N → K ≠ N
176 32 173 175 subne0d ⊢ K ∈ 1 ..^ N → K − N ≠ 0
177 176 adantl ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K − N ≠ 0
178 177 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K − N ≠ 0
179 169 170 171 178 addneintr2d ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K - N + J ≠ 0 + J
180 33 37 54 3jca ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K ∈ ℂ ∧ J ∈ ℂ ∧ N ∈ ℂ
181 180 adantl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K ∈ ℂ ∧ J ∈ ℂ ∧ N ∈ ℂ
182 addsub ⊢ K ∈ ℂ ∧ J ∈ ℂ ∧ N ∈ ℂ → K + J - N = K - N + J
183 181 182 syl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N = K - N + J
184 171 45 syl ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → 0 + J = J
185 184 eqcomd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → J = 0 + J
186 179 183 185 3netr4d ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ≠ J
187 eldifsn ⊢ K + J - N ∈ 0 ..^ N ∖ J ↔ K + J - N ∈ 0 ..^ N ∧ K + J - N ≠ J
188 161 186 187 sylanbrc ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J - N ∈ 0 ..^ N ∖ J
189 127 188 eqeltrd ⊢ ¬ K + J < N ∧ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J mod N ∈ 0 ..^ N ∖ J
190 51 189 pm2.61ian ⊢ J ∈ 0 ..^ N ∧ K ∈ 1 ..^ N → K + J mod N ∈ 0 ..^ N ∖ J