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Theorem distrnq 10218
 Description: Multiplication of positive fractions is distributive. (Contributed by NM, 2-Sep-1995.) (Revised by Mario Carneiro, 28-Apr-2013.) (New usage is discouraged.)
Assertion
Ref Expression
distrnq (𝐴 ·Q (𝐵 +Q 𝐶)) = ((𝐴 ·Q 𝐵) +Q (𝐴 ·Q 𝐶))

Proof of Theorem distrnq
Dummy variables 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 mulcompi 10153 . . . . . . . . . . . . 13 ((1st𝐴) ·N (1st𝐵)) = ((1st𝐵) ·N (1st𝐴))
21oveq1i 7017 . . . . . . . . . . . 12 (((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) = (((1st𝐵) ·N (1st𝐴)) ·N ((2nd𝐴) ·N (2nd𝐶)))
3 fvex 6543 . . . . . . . . . . . . 13 (1st𝐵) ∈ V
4 fvex 6543 . . . . . . . . . . . . 13 (1st𝐴) ∈ V
5 fvex 6543 . . . . . . . . . . . . 13 (2nd𝐴) ∈ V
6 mulcompi 10153 . . . . . . . . . . . . 13 (𝑥 ·N 𝑦) = (𝑦 ·N 𝑥)
7 mulasspi 10154 . . . . . . . . . . . . 13 ((𝑥 ·N 𝑦) ·N 𝑧) = (𝑥 ·N (𝑦 ·N 𝑧))
8 fvex 6543 . . . . . . . . . . . . 13 (2nd𝐶) ∈ V
93, 4, 5, 6, 7, 8caov411 7227 . . . . . . . . . . . 12 (((1st𝐵) ·N (1st𝐴)) ·N ((2nd𝐴) ·N (2nd𝐶))) = (((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐵) ·N (2nd𝐶)))
102, 9eqtri 2817 . . . . . . . . . . 11 (((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) = (((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐵) ·N (2nd𝐶)))
11 mulcompi 10153 . . . . . . . . . . . . 13 ((1st𝐴) ·N (1st𝐶)) = ((1st𝐶) ·N (1st𝐴))
1211oveq1i 7017 . . . . . . . . . . . 12 (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵))) = (((1st𝐶) ·N (1st𝐴)) ·N ((2nd𝐴) ·N (2nd𝐵)))
13 fvex 6543 . . . . . . . . . . . . 13 (1st𝐶) ∈ V
14 fvex 6543 . . . . . . . . . . . . 13 (2nd𝐵) ∈ V
1513, 4, 5, 6, 7, 14caov411 7227 . . . . . . . . . . . 12 (((1st𝐶) ·N (1st𝐴)) ·N ((2nd𝐴) ·N (2nd𝐵))) = (((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐶) ·N (2nd𝐵)))
1612, 15eqtri 2817 . . . . . . . . . . 11 (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵))) = (((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐶) ·N (2nd𝐵)))
1710, 16oveq12i 7019 . . . . . . . . . 10 ((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))) = ((((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐵) ·N (2nd𝐶))) +N (((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐶) ·N (2nd𝐵))))
18 distrpi 10155 . . . . . . . . . 10 (((2nd𝐴) ·N (1st𝐴)) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))) = ((((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐵) ·N (2nd𝐶))) +N (((2nd𝐴) ·N (1st𝐴)) ·N ((1st𝐶) ·N (2nd𝐵))))
19 mulasspi 10154 . . . . . . . . . 10 (((2nd𝐴) ·N (1st𝐴)) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))) = ((2nd𝐴) ·N ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))))
2017, 18, 193eqtr2i 2823 . . . . . . . . 9 ((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))) = ((2nd𝐴) ·N ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))))
21 mulasspi 10154 . . . . . . . . . 10 (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) = ((2nd𝐴) ·N ((2nd𝐵) ·N ((2nd𝐴) ·N (2nd𝐶))))
2214, 5, 8, 6, 7caov12 7223 . . . . . . . . . . 11 ((2nd𝐵) ·N ((2nd𝐴) ·N (2nd𝐶))) = ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))
2322oveq2i 7018 . . . . . . . . . 10 ((2nd𝐴) ·N ((2nd𝐵) ·N ((2nd𝐴) ·N (2nd𝐶)))) = ((2nd𝐴) ·N ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))))
2421, 23eqtri 2817 . . . . . . . . 9 (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) = ((2nd𝐴) ·N ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))))
2520, 24opeq12i 4709 . . . . . . . 8 ⟨((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))), (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶)))⟩ = ⟨((2nd𝐴) ·N ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))))), ((2nd𝐴) ·N ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))))⟩
26 elpqn 10182 . . . . . . . . . . 11 (𝐴Q𝐴 ∈ (N × N))
27263ad2ant1 1124 . . . . . . . . . 10 ((𝐴Q𝐵Q𝐶Q) → 𝐴 ∈ (N × N))
28 xp2nd 7569 . . . . . . . . . 10 (𝐴 ∈ (N × N) → (2nd𝐴) ∈ N)
2927, 28syl 17 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → (2nd𝐴) ∈ N)
30 xp1st 7568 . . . . . . . . . . 11 (𝐴 ∈ (N × N) → (1st𝐴) ∈ N)
3127, 30syl 17 . . . . . . . . . 10 ((𝐴Q𝐵Q𝐶Q) → (1st𝐴) ∈ N)
32 elpqn 10182 . . . . . . . . . . . . . 14 (𝐵Q𝐵 ∈ (N × N))
33323ad2ant2 1125 . . . . . . . . . . . . 13 ((𝐴Q𝐵Q𝐶Q) → 𝐵 ∈ (N × N))
34 xp1st 7568 . . . . . . . . . . . . 13 (𝐵 ∈ (N × N) → (1st𝐵) ∈ N)
3533, 34syl 17 . . . . . . . . . . . 12 ((𝐴Q𝐵Q𝐶Q) → (1st𝐵) ∈ N)
36 elpqn 10182 . . . . . . . . . . . . . 14 (𝐶Q𝐶 ∈ (N × N))
37363ad2ant3 1126 . . . . . . . . . . . . 13 ((𝐴Q𝐵Q𝐶Q) → 𝐶 ∈ (N × N))
38 xp2nd 7569 . . . . . . . . . . . . 13 (𝐶 ∈ (N × N) → (2nd𝐶) ∈ N)
3937, 38syl 17 . . . . . . . . . . . 12 ((𝐴Q𝐵Q𝐶Q) → (2nd𝐶) ∈ N)
40 mulclpi 10150 . . . . . . . . . . . 12 (((1st𝐵) ∈ N ∧ (2nd𝐶) ∈ N) → ((1st𝐵) ·N (2nd𝐶)) ∈ N)
4135, 39, 40syl2anc 584 . . . . . . . . . . 11 ((𝐴Q𝐵Q𝐶Q) → ((1st𝐵) ·N (2nd𝐶)) ∈ N)
42 xp1st 7568 . . . . . . . . . . . . 13 (𝐶 ∈ (N × N) → (1st𝐶) ∈ N)
4337, 42syl 17 . . . . . . . . . . . 12 ((𝐴Q𝐵Q𝐶Q) → (1st𝐶) ∈ N)
44 xp2nd 7569 . . . . . . . . . . . . 13 (𝐵 ∈ (N × N) → (2nd𝐵) ∈ N)
4533, 44syl 17 . . . . . . . . . . . 12 ((𝐴Q𝐵Q𝐶Q) → (2nd𝐵) ∈ N)
46 mulclpi 10150 . . . . . . . . . . . 12 (((1st𝐶) ∈ N ∧ (2nd𝐵) ∈ N) → ((1st𝐶) ·N (2nd𝐵)) ∈ N)
4743, 45, 46syl2anc 584 . . . . . . . . . . 11 ((𝐴Q𝐵Q𝐶Q) → ((1st𝐶) ·N (2nd𝐵)) ∈ N)
48 addclpi 10149 . . . . . . . . . . 11 ((((1st𝐵) ·N (2nd𝐶)) ∈ N ∧ ((1st𝐶) ·N (2nd𝐵)) ∈ N) → (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))) ∈ N)
4941, 47, 48syl2anc 584 . . . . . . . . . 10 ((𝐴Q𝐵Q𝐶Q) → (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))) ∈ N)
50 mulclpi 10150 . . . . . . . . . 10 (((1st𝐴) ∈ N ∧ (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))) ∈ N) → ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))) ∈ N)
5131, 49, 50syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))) ∈ N)
52 mulclpi 10150 . . . . . . . . . . 11 (((2nd𝐵) ∈ N ∧ (2nd𝐶) ∈ N) → ((2nd𝐵) ·N (2nd𝐶)) ∈ N)
5345, 39, 52syl2anc 584 . . . . . . . . . 10 ((𝐴Q𝐵Q𝐶Q) → ((2nd𝐵) ·N (2nd𝐶)) ∈ N)
54 mulclpi 10150 . . . . . . . . . 10 (((2nd𝐴) ∈ N ∧ ((2nd𝐵) ·N (2nd𝐶)) ∈ N) → ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))) ∈ N)
5529, 53, 54syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))) ∈ N)
56 mulcanenq 10217 . . . . . . . . 9 (((2nd𝐴) ∈ N ∧ ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))) ∈ N ∧ ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))) ∈ N) → ⟨((2nd𝐴) ·N ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))))), ((2nd𝐴) ·N ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))))⟩ ~Q ⟨((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))), ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))⟩)
5729, 51, 55, 56syl3anc 1362 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → ⟨((2nd𝐴) ·N ((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))))), ((2nd𝐴) ·N ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶))))⟩ ~Q ⟨((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))), ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))⟩)
5825, 57eqbrtrid 4991 . . . . . . 7 ((𝐴Q𝐵Q𝐶Q) → ⟨((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))), (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶)))⟩ ~Q ⟨((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))), ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))⟩)
59 mulpipq2 10196 . . . . . . . . . 10 ((𝐴 ∈ (N × N) ∧ 𝐵 ∈ (N × N)) → (𝐴 ·pQ 𝐵) = ⟨((1st𝐴) ·N (1st𝐵)), ((2nd𝐴) ·N (2nd𝐵))⟩)
6027, 33, 59syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ 𝐵) = ⟨((1st𝐴) ·N (1st𝐵)), ((2nd𝐴) ·N (2nd𝐵))⟩)
61 mulpipq2 10196 . . . . . . . . . 10 ((𝐴 ∈ (N × N) ∧ 𝐶 ∈ (N × N)) → (𝐴 ·pQ 𝐶) = ⟨((1st𝐴) ·N (1st𝐶)), ((2nd𝐴) ·N (2nd𝐶))⟩)
6227, 37, 61syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ 𝐶) = ⟨((1st𝐴) ·N (1st𝐶)), ((2nd𝐴) ·N (2nd𝐶))⟩)
6360, 62oveq12d 7025 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → ((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) = (⟨((1st𝐴) ·N (1st𝐵)), ((2nd𝐴) ·N (2nd𝐵))⟩ +pQ ⟨((1st𝐴) ·N (1st𝐶)), ((2nd𝐴) ·N (2nd𝐶))⟩))
64 mulclpi 10150 . . . . . . . . . 10 (((1st𝐴) ∈ N ∧ (1st𝐵) ∈ N) → ((1st𝐴) ·N (1st𝐵)) ∈ N)
6531, 35, 64syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → ((1st𝐴) ·N (1st𝐵)) ∈ N)
66 mulclpi 10150 . . . . . . . . . 10 (((2nd𝐴) ∈ N ∧ (2nd𝐵) ∈ N) → ((2nd𝐴) ·N (2nd𝐵)) ∈ N)
6729, 45, 66syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → ((2nd𝐴) ·N (2nd𝐵)) ∈ N)
68 mulclpi 10150 . . . . . . . . . 10 (((1st𝐴) ∈ N ∧ (1st𝐶) ∈ N) → ((1st𝐴) ·N (1st𝐶)) ∈ N)
6931, 43, 68syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → ((1st𝐴) ·N (1st𝐶)) ∈ N)
70 mulclpi 10150 . . . . . . . . . 10 (((2nd𝐴) ∈ N ∧ (2nd𝐶) ∈ N) → ((2nd𝐴) ·N (2nd𝐶)) ∈ N)
7129, 39, 70syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → ((2nd𝐴) ·N (2nd𝐶)) ∈ N)
72 addpipq 10194 . . . . . . . . 9 (((((1st𝐴) ·N (1st𝐵)) ∈ N ∧ ((2nd𝐴) ·N (2nd𝐵)) ∈ N) ∧ (((1st𝐴) ·N (1st𝐶)) ∈ N ∧ ((2nd𝐴) ·N (2nd𝐶)) ∈ N)) → (⟨((1st𝐴) ·N (1st𝐵)), ((2nd𝐴) ·N (2nd𝐵))⟩ +pQ ⟨((1st𝐴) ·N (1st𝐶)), ((2nd𝐴) ·N (2nd𝐶))⟩) = ⟨((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))), (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶)))⟩)
7365, 67, 69, 71, 72syl22anc 835 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → (⟨((1st𝐴) ·N (1st𝐵)), ((2nd𝐴) ·N (2nd𝐵))⟩ +pQ ⟨((1st𝐴) ·N (1st𝐶)), ((2nd𝐴) ·N (2nd𝐶))⟩) = ⟨((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))), (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶)))⟩)
7463, 73eqtrd 2829 . . . . . . 7 ((𝐴Q𝐵Q𝐶Q) → ((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) = ⟨((((1st𝐴) ·N (1st𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶))) +N (((1st𝐴) ·N (1st𝐶)) ·N ((2nd𝐴) ·N (2nd𝐵)))), (((2nd𝐴) ·N (2nd𝐵)) ·N ((2nd𝐴) ·N (2nd𝐶)))⟩)
75 relxp 5453 . . . . . . . . . 10 Rel (N × N)
76 1st2nd 7585 . . . . . . . . . 10 ((Rel (N × N) ∧ 𝐴 ∈ (N × N)) → 𝐴 = ⟨(1st𝐴), (2nd𝐴)⟩)
7775, 27, 76sylancr 587 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → 𝐴 = ⟨(1st𝐴), (2nd𝐴)⟩)
78 addpipq2 10193 . . . . . . . . . 10 ((𝐵 ∈ (N × N) ∧ 𝐶 ∈ (N × N)) → (𝐵 +pQ 𝐶) = ⟨(((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))), ((2nd𝐵) ·N (2nd𝐶))⟩)
7933, 37, 78syl2anc 584 . . . . . . . . 9 ((𝐴Q𝐵Q𝐶Q) → (𝐵 +pQ 𝐶) = ⟨(((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))), ((2nd𝐵) ·N (2nd𝐶))⟩)
8077, 79oveq12d 7025 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ (𝐵 +pQ 𝐶)) = (⟨(1st𝐴), (2nd𝐴)⟩ ·pQ ⟨(((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))), ((2nd𝐵) ·N (2nd𝐶))⟩))
81 mulpipq 10197 . . . . . . . . 9 ((((1st𝐴) ∈ N ∧ (2nd𝐴) ∈ N) ∧ ((((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))) ∈ N ∧ ((2nd𝐵) ·N (2nd𝐶)) ∈ N)) → (⟨(1st𝐴), (2nd𝐴)⟩ ·pQ ⟨(((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))), ((2nd𝐵) ·N (2nd𝐶))⟩) = ⟨((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))), ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))⟩)
8231, 29, 49, 53, 81syl22anc 835 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → (⟨(1st𝐴), (2nd𝐴)⟩ ·pQ ⟨(((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵))), ((2nd𝐵) ·N (2nd𝐶))⟩) = ⟨((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))), ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))⟩)
8380, 82eqtrd 2829 . . . . . . 7 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ (𝐵 +pQ 𝐶)) = ⟨((1st𝐴) ·N (((1st𝐵) ·N (2nd𝐶)) +N ((1st𝐶) ·N (2nd𝐵)))), ((2nd𝐴) ·N ((2nd𝐵) ·N (2nd𝐶)))⟩)
8458, 74, 833brtr4d 4988 . . . . . 6 ((𝐴Q𝐵Q𝐶Q) → ((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) ~Q (𝐴 ·pQ (𝐵 +pQ 𝐶)))
85 mulpqf 10203 . . . . . . . . . 10 ·pQ :((N × N) × (N × N))⟶(N × N)
8685fovcl 7126 . . . . . . . . 9 ((𝐴 ∈ (N × N) ∧ 𝐵 ∈ (N × N)) → (𝐴 ·pQ 𝐵) ∈ (N × N))
8727, 33, 86syl2anc 584 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ 𝐵) ∈ (N × N))
8885fovcl 7126 . . . . . . . . 9 ((𝐴 ∈ (N × N) ∧ 𝐶 ∈ (N × N)) → (𝐴 ·pQ 𝐶) ∈ (N × N))
8927, 37, 88syl2anc 584 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ 𝐶) ∈ (N × N))
90 addpqf 10201 . . . . . . . . 9 +pQ :((N × N) × (N × N))⟶(N × N)
9190fovcl 7126 . . . . . . . 8 (((𝐴 ·pQ 𝐵) ∈ (N × N) ∧ (𝐴 ·pQ 𝐶) ∈ (N × N)) → ((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) ∈ (N × N))
9287, 89, 91syl2anc 584 . . . . . . 7 ((𝐴Q𝐵Q𝐶Q) → ((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) ∈ (N × N))
9390fovcl 7126 . . . . . . . . 9 ((𝐵 ∈ (N × N) ∧ 𝐶 ∈ (N × N)) → (𝐵 +pQ 𝐶) ∈ (N × N))
9433, 37, 93syl2anc 584 . . . . . . . 8 ((𝐴Q𝐵Q𝐶Q) → (𝐵 +pQ 𝐶) ∈ (N × N))
9585fovcl 7126 . . . . . . . 8 ((𝐴 ∈ (N × N) ∧ (𝐵 +pQ 𝐶) ∈ (N × N)) → (𝐴 ·pQ (𝐵 +pQ 𝐶)) ∈ (N × N))
9627, 94, 95syl2anc 584 . . . . . . 7 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·pQ (𝐵 +pQ 𝐶)) ∈ (N × N))
97 nqereq 10192 . . . . . . 7 ((((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) ∈ (N × N) ∧ (𝐴 ·pQ (𝐵 +pQ 𝐶)) ∈ (N × N)) → (((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) ~Q (𝐴 ·pQ (𝐵 +pQ 𝐶)) ↔ ([Q]‘((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶))) = ([Q]‘(𝐴 ·pQ (𝐵 +pQ 𝐶)))))
9892, 96, 97syl2anc 584 . . . . . 6 ((𝐴Q𝐵Q𝐶Q) → (((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)) ~Q (𝐴 ·pQ (𝐵 +pQ 𝐶)) ↔ ([Q]‘((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶))) = ([Q]‘(𝐴 ·pQ (𝐵 +pQ 𝐶)))))
9984, 98mpbid 233 . . . . 5 ((𝐴Q𝐵Q𝐶Q) → ([Q]‘((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶))) = ([Q]‘(𝐴 ·pQ (𝐵 +pQ 𝐶))))
10099eqcomd 2799 . . . 4 ((𝐴Q𝐵Q𝐶Q) → ([Q]‘(𝐴 ·pQ (𝐵 +pQ 𝐶))) = ([Q]‘((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶))))
101 mulerpq 10214 . . . 4 (([Q]‘𝐴) ·Q ([Q]‘(𝐵 +pQ 𝐶))) = ([Q]‘(𝐴 ·pQ (𝐵 +pQ 𝐶)))
102 adderpq 10213 . . . 4 (([Q]‘(𝐴 ·pQ 𝐵)) +Q ([Q]‘(𝐴 ·pQ 𝐶))) = ([Q]‘((𝐴 ·pQ 𝐵) +pQ (𝐴 ·pQ 𝐶)))
103100, 101, 1023eqtr4g 2854 . . 3 ((𝐴Q𝐵Q𝐶Q) → (([Q]‘𝐴) ·Q ([Q]‘(𝐵 +pQ 𝐶))) = (([Q]‘(𝐴 ·pQ 𝐵)) +Q ([Q]‘(𝐴 ·pQ 𝐶))))
104 nqerid 10190 . . . . . 6 (𝐴Q → ([Q]‘𝐴) = 𝐴)
105104eqcomd 2799 . . . . 5 (𝐴Q𝐴 = ([Q]‘𝐴))
1061053ad2ant1 1124 . . . 4 ((𝐴Q𝐵Q𝐶Q) → 𝐴 = ([Q]‘𝐴))
107 addpqnq 10195 . . . . 5 ((𝐵Q𝐶Q) → (𝐵 +Q 𝐶) = ([Q]‘(𝐵 +pQ 𝐶)))
1081073adant1 1121 . . . 4 ((𝐴Q𝐵Q𝐶Q) → (𝐵 +Q 𝐶) = ([Q]‘(𝐵 +pQ 𝐶)))
109106, 108oveq12d 7025 . . 3 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·Q (𝐵 +Q 𝐶)) = (([Q]‘𝐴) ·Q ([Q]‘(𝐵 +pQ 𝐶))))
110 mulpqnq 10198 . . . . 5 ((𝐴Q𝐵Q) → (𝐴 ·Q 𝐵) = ([Q]‘(𝐴 ·pQ 𝐵)))
1111103adant3 1123 . . . 4 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·Q 𝐵) = ([Q]‘(𝐴 ·pQ 𝐵)))
112 mulpqnq 10198 . . . . 5 ((𝐴Q𝐶Q) → (𝐴 ·Q 𝐶) = ([Q]‘(𝐴 ·pQ 𝐶)))
1131123adant2 1122 . . . 4 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·Q 𝐶) = ([Q]‘(𝐴 ·pQ 𝐶)))
114111, 113oveq12d 7025 . . 3 ((𝐴Q𝐵Q𝐶Q) → ((𝐴 ·Q 𝐵) +Q (𝐴 ·Q 𝐶)) = (([Q]‘(𝐴 ·pQ 𝐵)) +Q ([Q]‘(𝐴 ·pQ 𝐶))))
115103, 109, 1143eqtr4d 2839 . 2 ((𝐴Q𝐵Q𝐶Q) → (𝐴 ·Q (𝐵 +Q 𝐶)) = ((𝐴 ·Q 𝐵) +Q (𝐴 ·Q 𝐶)))
116 addnqf 10205 . . . 4 +Q :(Q × Q)⟶Q
117116fdmi 6384 . . 3 dom +Q = (Q × Q)
118 0nnq 10181 . . 3 ¬ ∅ ∈ Q
119 mulnqf 10206 . . . 4 ·Q :(Q × Q)⟶Q
120119fdmi 6384 . . 3 dom ·Q = (Q × Q)
121117, 118, 120ndmovdistr 7184 . 2 (¬ (𝐴Q𝐵Q𝐶Q) → (𝐴 ·Q (𝐵 +Q 𝐶)) = ((𝐴 ·Q 𝐵) +Q (𝐴 ·Q 𝐶)))
122115, 121pm2.61i 183 1 (𝐴 ·Q (𝐵 +Q 𝐶)) = ((𝐴 ·Q 𝐵) +Q (𝐴 ·Q 𝐶))
 Colors of variables: wff setvar class Syntax hints:   ↔ wb 207   ∧ w3a 1078   = wceq 1520   ∈ wcel 2079  ⟨cop 4472   class class class wbr 4956   × cxp 5433  Rel wrel 5440  ‘cfv 6217  (class class class)co 7007  1st c1st 7534  2nd c2nd 7535  Ncnpi 10101   +N cpli 10102   ·N cmi 10103   +pQ cplpq 10105   ·pQ cmpq 10106   ~Q ceq 10108  Qcnq 10109  [Q]cerq 10111   +Q cplq 10112   ·Q cmq 10113 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1775  ax-4 1789  ax-5 1886  ax-6 1945  ax-7 1990  ax-8 2081  ax-9 2089  ax-10 2110  ax-11 2124  ax-12 2139  ax-13 2342  ax-ext 2767  ax-sep 5088  ax-nul 5095  ax-pow 5150  ax-pr 5214  ax-un 7310 This theorem depends on definitions:  df-bi 208  df-an 397  df-or 843  df-3or 1079  df-3an 1080  df-tru 1523  df-ex 1760  df-nf 1764  df-sb 2041  df-mo 2574  df-eu 2610  df-clab 2774  df-cleq 2786  df-clel 2861  df-nfc 2933  df-ne 2983  df-ral 3108  df-rex 3109  df-reu 3110  df-rmo 3111  df-rab 3112  df-v 3434  df-sbc 3702  df-csb 3807  df-dif 3857  df-un 3859  df-in 3861  df-ss 3869  df-pss 3871  df-nul 4207  df-if 4376  df-pw 4449  df-sn 4467  df-pr 4469  df-tp 4471  df-op 4473  df-uni 4740  df-iun 4821  df-br 4957  df-opab 5019  df-mpt 5036  df-tr 5058  df-id 5340  df-eprel 5345  df-po 5354  df-so 5355  df-fr 5394  df-we 5396  df-xp 5441  df-rel 5442  df-cnv 5443  df-co 5444  df-dm 5445  df-rn 5446  df-res 5447  df-ima 5448  df-pred 6015  df-ord 6061  df-on 6062  df-lim 6063  df-suc 6064  df-iota 6181  df-fun 6219  df-fn 6220  df-f 6221  df-f1 6222  df-fo 6223  df-f1o 6224  df-fv 6225  df-ov 7010  df-oprab 7011  df-mpo 7012  df-om 7428  df-1st 7536  df-2nd 7537  df-wrecs 7789  df-recs 7851  df-rdg 7889  df-1o 7944  df-oadd 7948  df-omul 7949  df-er 8130  df-ni 10129  df-pli 10130  df-mi 10131  df-lti 10132  df-plpq 10165  df-mpq 10166  df-enq 10168  df-nq 10169  df-erq 10170  df-plq 10171  df-mq 10172  df-1nq 10173 This theorem is referenced by:  ltaddnq  10231  halfnq  10233  addclprlem2  10274  distrlem1pr  10282  distrlem4pr  10283  prlem934  10290  prlem936  10304
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