modaddmodup - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > modaddmodup		Structured version Visualization version GIF version

Theorem modaddmodup 13654

Description: The sum of an integer modulo a positive integer and another integer minus the positive integer equals the sum of the two integers modulo the positive integer if the other integer is in the upper part of the range between 0 and the positive integer. (Contributed by AV, 30-Oct-2018.)

**Assertion**
Ref	Expression
modaddmodup	⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) → ((𝐵 + (𝐴 mod 𝑀)) − 𝑀) = ((𝐵 + 𝐴) mod 𝑀)))

**Proof of Theorem modaddmodup**
Step	Hyp	Ref	Expression
1		elfzoelz 13387	. . . . . . . 8 ⊢ (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) → 𝐵 ∈ ℤ)
2	1	zred 12426	. . . . . . 7 ⊢ (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) → 𝐵 ∈ ℝ)
3	2	adantr 481	. . . . . 6 ⊢ ((𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → 𝐵 ∈ ℝ)
4		zmodcl 13611	. . . . . . . 8 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐴 mod 𝑀) ∈ ℕ₀)
5	4	nn0red 12294	. . . . . . 7 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐴 mod 𝑀) ∈ ℝ)
6	5	adantl 482	. . . . . 6 ⊢ ((𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → (𝐴 mod 𝑀) ∈ ℝ)
7	3, 6	readdcld 11004	. . . . 5 ⊢ ((𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → (𝐵 + (𝐴 mod 𝑀)) ∈ ℝ)
8	7	ancoms 459	. . . 4 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → (𝐵 + (𝐴 mod 𝑀)) ∈ ℝ)
9		nnrp 12741	. . . . 5 ⊢ (𝑀 ∈ ℕ → 𝑀 ∈ ℝ⁺)
10	9	ad2antlr 724	. . . 4 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → 𝑀 ∈ ℝ⁺)
11		elfzo2 13390	. . . . . 6 ⊢ (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) ↔ (𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) ∧ 𝑀 ∈ ℤ ∧ 𝐵 < 𝑀))
12		eluz2 12588	. . . . . . . 8 ⊢ (𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) ↔ ((𝑀 − (𝐴 mod 𝑀)) ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ (𝑀 − (𝐴 mod 𝑀)) ≤ 𝐵))
13		nnre 11980	. . . . . . . . . . . . . 14 ⊢ (𝑀 ∈ ℕ → 𝑀 ∈ ℝ)
14	13	adantl 482	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝑀 ∈ ℝ)
15	14	adantl 482	. . . . . . . . . . . 12 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → 𝑀 ∈ ℝ)
16	5	adantl 482	. . . . . . . . . . . 12 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → (𝐴 mod 𝑀) ∈ ℝ)
17		zre 12323	. . . . . . . . . . . . 13 ⊢ (𝐵 ∈ ℤ → 𝐵 ∈ ℝ)
18	17	adantr 481	. . . . . . . . . . . 12 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → 𝐵 ∈ ℝ)
19	15, 16, 18	lesubaddd 11572	. . . . . . . . . . 11 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → ((𝑀 − (𝐴 mod 𝑀)) ≤ 𝐵 ↔ 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
20	19	biimpd 228	. . . . . . . . . 10 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → ((𝑀 − (𝐴 mod 𝑀)) ≤ 𝐵 → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
21	20	impancom 452	. . . . . . . . 9 ⊢ ((𝐵 ∈ ℤ ∧ (𝑀 − (𝐴 mod 𝑀)) ≤ 𝐵) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
22	21	3adant1 1129	. . . . . . . 8 ⊢ (((𝑀 − (𝐴 mod 𝑀)) ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ (𝑀 − (𝐴 mod 𝑀)) ≤ 𝐵) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
23	12, 22	sylbi 216	. . . . . . 7 ⊢ (𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
24	23	3ad2ant1 1132	. . . . . 6 ⊢ ((𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) ∧ 𝑀 ∈ ℤ ∧ 𝐵 < 𝑀) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
25	11, 24	sylbi 216	. . . . 5 ⊢ (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀))))
26	25	impcom 408	. . . 4 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → 𝑀 ≤ (𝐵 + (𝐴 mod 𝑀)))
27		eluzelz 12592	. . . . . . . . 9 ⊢ (𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) → 𝐵 ∈ ℤ)
28	17, 5	anim12i 613	. . . . . . . . . . . . . . 15 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → (𝐵 ∈ ℝ ∧ (𝐴 mod 𝑀) ∈ ℝ))
29	13, 13	jca 512	. . . . . . . . . . . . . . . . 17 ⊢ (𝑀 ∈ ℕ → (𝑀 ∈ ℝ ∧ 𝑀 ∈ ℝ))
30	29	adantl 482	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝑀 ∈ ℝ ∧ 𝑀 ∈ ℝ))
31	30	adantl 482	. . . . . . . . . . . . . . 15 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → (𝑀 ∈ ℝ ∧ 𝑀 ∈ ℝ))
32	28, 31	jca 512	. . . . . . . . . . . . . 14 ⊢ ((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) → ((𝐵 ∈ ℝ ∧ (𝐴 mod 𝑀) ∈ ℝ) ∧ (𝑀 ∈ ℝ ∧ 𝑀 ∈ ℝ)))
33	32	adantr 481	. . . . . . . . . . . . 13 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → ((𝐵 ∈ ℝ ∧ (𝐴 mod 𝑀) ∈ ℝ) ∧ (𝑀 ∈ ℝ ∧ 𝑀 ∈ ℝ)))
34		simpr 485	. . . . . . . . . . . . . 14 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → 𝐵 < 𝑀)
35		zre 12323	. . . . . . . . . . . . . . . . 17 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℝ)
36		modlt 13600	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ∈ ℝ ∧ 𝑀 ∈ ℝ⁺) → (𝐴 mod 𝑀) < 𝑀)
37	35, 9, 36	syl2an 596	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐴 mod 𝑀) < 𝑀)
38	5, 14, 37	ltled 11123	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐴 mod 𝑀) ≤ 𝑀)
39	38	ad2antlr 724	. . . . . . . . . . . . . 14 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → (𝐴 mod 𝑀) ≤ 𝑀)
40	34, 39	jca 512	. . . . . . . . . . . . 13 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → (𝐵 < 𝑀 ∧ (𝐴 mod 𝑀) ≤ 𝑀))
41		ltleadd 11458	. . . . . . . . . . . . 13 ⊢ (((𝐵 ∈ ℝ ∧ (𝐴 mod 𝑀) ∈ ℝ) ∧ (𝑀 ∈ ℝ ∧ 𝑀 ∈ ℝ)) → ((𝐵 < 𝑀 ∧ (𝐴 mod 𝑀) ≤ 𝑀) → (𝐵 + (𝐴 mod 𝑀)) < (𝑀 + 𝑀)))
42	33, 40, 41	sylc 65	. . . . . . . . . . . 12 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → (𝐵 + (𝐴 mod 𝑀)) < (𝑀 + 𝑀))
43		nncn 11981	. . . . . . . . . . . . . . 15 ⊢ (𝑀 ∈ ℕ → 𝑀 ∈ ℂ)
44	43	2timesd 12216	. . . . . . . . . . . . . 14 ⊢ (𝑀 ∈ ℕ → (2 · 𝑀) = (𝑀 + 𝑀))
45	44	adantl 482	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (2 · 𝑀) = (𝑀 + 𝑀))
46	45	ad2antlr 724	. . . . . . . . . . . 12 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → (2 · 𝑀) = (𝑀 + 𝑀))
47	42, 46	breqtrrd 5102	. . . . . . . . . . 11 ⊢ (((𝐵 ∈ ℤ ∧ (𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ)) ∧ 𝐵 < 𝑀) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))
48	47	exp31 420	. . . . . . . . . 10 ⊢ (𝐵 ∈ ℤ → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 < 𝑀 → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))))
49	48	com23 86	. . . . . . . . 9 ⊢ (𝐵 ∈ ℤ → (𝐵 < 𝑀 → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))))
50	27, 49	syl 17	. . . . . . . 8 ⊢ (𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) → (𝐵 < 𝑀 → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))))
51	50	imp 407	. . . . . . 7 ⊢ ((𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) ∧ 𝐵 < 𝑀) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀)))
52	51	3adant2 1130	. . . . . 6 ⊢ ((𝐵 ∈ (ℤ_≥‘(𝑀 − (𝐴 mod 𝑀))) ∧ 𝑀 ∈ ℤ ∧ 𝐵 < 𝑀) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀)))
53	11, 52	sylbi 216	. . . . 5 ⊢ (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) → ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀)))
54	53	impcom 408	. . . 4 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))
55		2submod 13652	. . . . 5 ⊢ ((((𝐵 + (𝐴 mod 𝑀)) ∈ ℝ ∧ 𝑀 ∈ ℝ⁺) ∧ (𝑀 ≤ (𝐵 + (𝐴 mod 𝑀)) ∧ (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))) → ((𝐵 + (𝐴 mod 𝑀)) mod 𝑀) = ((𝐵 + (𝐴 mod 𝑀)) − 𝑀))
56	55	eqcomd 2744	. . . 4 ⊢ ((((𝐵 + (𝐴 mod 𝑀)) ∈ ℝ ∧ 𝑀 ∈ ℝ⁺) ∧ (𝑀 ≤ (𝐵 + (𝐴 mod 𝑀)) ∧ (𝐵 + (𝐴 mod 𝑀)) < (2 · 𝑀))) → ((𝐵 + (𝐴 mod 𝑀)) − 𝑀) = ((𝐵 + (𝐴 mod 𝑀)) mod 𝑀))
57	8, 10, 26, 54, 56	syl22anc 836	. . 3 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → ((𝐵 + (𝐴 mod 𝑀)) − 𝑀) = ((𝐵 + (𝐴 mod 𝑀)) mod 𝑀))
58	35	adantr 481	. . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → 𝐴 ∈ ℝ)
59	58	adantr 481	. . . 4 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → 𝐴 ∈ ℝ)
60	2	adantl 482	. . . 4 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → 𝐵 ∈ ℝ)
61		modadd2mod 13641	. . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝑀 ∈ ℝ⁺) → ((𝐵 + (𝐴 mod 𝑀)) mod 𝑀) = ((𝐵 + 𝐴) mod 𝑀))
62	59, 60, 10, 61	syl3anc 1370	. . 3 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → ((𝐵 + (𝐴 mod 𝑀)) mod 𝑀) = ((𝐵 + 𝐴) mod 𝑀))
63	57, 62	eqtrd 2778	. 2 ⊢ (((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) ∧ 𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀)) → ((𝐵 + (𝐴 mod 𝑀)) − 𝑀) = ((𝐵 + 𝐴) mod 𝑀))
64	63	ex 413	1 ⊢ ((𝐴 ∈ ℤ ∧ 𝑀 ∈ ℕ) → (𝐵 ∈ ((𝑀 − (𝐴 mod 𝑀))..^𝑀) → ((𝐵 + (𝐴 mod 𝑀)) − 𝑀) = ((𝐵 + 𝐴) mod 𝑀)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 class class class wbr 5074 ‘cfv 6433 (class class class)co 7275 ℝcr 10870 + caddc 10874 · cmul 10876 < clt 11009 ≤ cle 11010 − cmin 11205 ℕcn 11973 2c2 12028 ℤcz 12319 ℤ_≥cuz 12582 ℝ⁺crp 12730 ..^cfzo 13382 mod cmo 13589

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-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 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-iun 4926 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-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-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-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-sup 9201 df-inf 9202 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-n0 12234 df-z 12320 df-uz 12583 df-rp 12731 df-fz 13240 df-fzo 13383 df-fl 13512 df-mod 13590

This theorem is referenced by: cshwidxmod 14516

W3C validator