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Description: Multiplication of positive fractions is distributive. (Contributed by NM, 2-Sep-1995) (Revised by Mario Carneiro, 28-Apr-2013) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | distrnq | ⊢ ( 𝐴 ·Q ( 𝐵 +Q 𝐶 ) ) = ( ( 𝐴 ·Q 𝐵 ) +Q ( 𝐴 ·Q 𝐶 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mulcompi | ⊢ ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) = ( ( 1st ‘ 𝐵 ) ·N ( 1st ‘ 𝐴 ) ) | |
| 2 | 1 | oveq1i | ⊢ ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) = ( ( ( 1st ‘ 𝐵 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) |
| 3 | fvex | ⊢ ( 1st ‘ 𝐵 ) ∈ V | |
| 4 | fvex | ⊢ ( 1st ‘ 𝐴 ) ∈ V | |
| 5 | fvex | ⊢ ( 2nd ‘ 𝐴 ) ∈ V | |
| 6 | mulcompi | ⊢ ( 𝑥 ·N 𝑦 ) = ( 𝑦 ·N 𝑥 ) | |
| 7 | mulasspi | ⊢ ( ( 𝑥 ·N 𝑦 ) ·N 𝑧 ) = ( 𝑥 ·N ( 𝑦 ·N 𝑧 ) ) | |
| 8 | fvex | ⊢ ( 2nd ‘ 𝐶 ) ∈ V | |
| 9 | 3 4 5 6 7 8 | caov411 | ⊢ ( ( ( 1st ‘ 𝐵 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) = ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) |
| 10 | 2 9 | eqtri | ⊢ ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) = ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) |
| 11 | mulcompi | ⊢ ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) = ( ( 1st ‘ 𝐶 ) ·N ( 1st ‘ 𝐴 ) ) | |
| 12 | 11 | oveq1i | ⊢ ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) = ( ( ( 1st ‘ 𝐶 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) |
| 13 | fvex | ⊢ ( 1st ‘ 𝐶 ) ∈ V | |
| 14 | fvex | ⊢ ( 2nd ‘ 𝐵 ) ∈ V | |
| 15 | 13 4 5 6 7 14 | caov411 | ⊢ ( ( ( 1st ‘ 𝐶 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) = ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) |
| 16 | 12 15 | eqtri | ⊢ ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) = ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) |
| 17 | 10 16 | oveq12i | ⊢ ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) = ( ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) |
| 18 | distrpi | ⊢ ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) = ( ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) | |
| 19 | mulasspi | ⊢ ( ( ( 2nd ‘ 𝐴 ) ·N ( 1st ‘ 𝐴 ) ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) = ( ( 2nd ‘ 𝐴 ) ·N ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ) | |
| 20 | 17 18 19 | 3eqtr2i | ⊢ ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) = ( ( 2nd ‘ 𝐴 ) ·N ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ) |
| 21 | mulasspi | ⊢ ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) = ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) | |
| 22 | 14 5 8 6 7 | caov12 | ⊢ ( ( 2nd ‘ 𝐵 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) = ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) |
| 23 | 22 | oveq2i | ⊢ ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) = ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) |
| 24 | 21 23 | eqtri | ⊢ ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) = ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) |
| 25 | 20 24 | opeq12i | ⊢ 〈 ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 = 〈 ( ( 2nd ‘ 𝐴 ) ·N ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) 〉 |
| 26 | elpqn | ⊢ ( 𝐴 ∈ Q → 𝐴 ∈ ( N × N ) ) | |
| 27 | 26 | 3ad2ant1 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 𝐴 ∈ ( N × N ) ) |
| 28 | xp2nd | ⊢ ( 𝐴 ∈ ( N × N ) → ( 2nd ‘ 𝐴 ) ∈ N ) | |
| 29 | 27 28 | syl | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 2nd ‘ 𝐴 ) ∈ N ) |
| 30 | xp1st | ⊢ ( 𝐴 ∈ ( N × N ) → ( 1st ‘ 𝐴 ) ∈ N ) | |
| 31 | 27 30 | syl | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 1st ‘ 𝐴 ) ∈ N ) |
| 32 | elpqn | ⊢ ( 𝐵 ∈ Q → 𝐵 ∈ ( N × N ) ) | |
| 33 | 32 | 3ad2ant2 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 𝐵 ∈ ( N × N ) ) |
| 34 | xp1st | ⊢ ( 𝐵 ∈ ( N × N ) → ( 1st ‘ 𝐵 ) ∈ N ) | |
| 35 | 33 34 | syl | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 1st ‘ 𝐵 ) ∈ N ) |
| 36 | elpqn | ⊢ ( 𝐶 ∈ Q → 𝐶 ∈ ( N × N ) ) | |
| 37 | 36 | 3ad2ant3 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 𝐶 ∈ ( N × N ) ) |
| 38 | xp2nd | ⊢ ( 𝐶 ∈ ( N × N ) → ( 2nd ‘ 𝐶 ) ∈ N ) | |
| 39 | 37 38 | syl | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 2nd ‘ 𝐶 ) ∈ N ) |
| 40 | mulclpi | ⊢ ( ( ( 1st ‘ 𝐵 ) ∈ N ∧ ( 2nd ‘ 𝐶 ) ∈ N ) → ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) | |
| 41 | 35 39 40 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) |
| 42 | xp1st | ⊢ ( 𝐶 ∈ ( N × N ) → ( 1st ‘ 𝐶 ) ∈ N ) | |
| 43 | 37 42 | syl | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 1st ‘ 𝐶 ) ∈ N ) |
| 44 | xp2nd | ⊢ ( 𝐵 ∈ ( N × N ) → ( 2nd ‘ 𝐵 ) ∈ N ) | |
| 45 | 33 44 | syl | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 2nd ‘ 𝐵 ) ∈ N ) |
| 46 | mulclpi | ⊢ ( ( ( 1st ‘ 𝐶 ) ∈ N ∧ ( 2nd ‘ 𝐵 ) ∈ N ) → ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ∈ N ) | |
| 47 | 43 45 46 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ∈ N ) |
| 48 | addclpi | ⊢ ( ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ∧ ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ∈ N ) → ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ∈ N ) | |
| 49 | 41 47 48 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ∈ N ) |
| 50 | mulclpi | ⊢ ( ( ( 1st ‘ 𝐴 ) ∈ N ∧ ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ∈ N ) → ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ∈ N ) | |
| 51 | 31 49 50 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ∈ N ) |
| 52 | mulclpi | ⊢ ( ( ( 2nd ‘ 𝐵 ) ∈ N ∧ ( 2nd ‘ 𝐶 ) ∈ N ) → ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) | |
| 53 | 45 39 52 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) |
| 54 | mulclpi | ⊢ ( ( ( 2nd ‘ 𝐴 ) ∈ N ∧ ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) → ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ∈ N ) | |
| 55 | 29 53 54 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ∈ N ) |
| 56 | mulcanenq | ⊢ ( ( ( 2nd ‘ 𝐴 ) ∈ N ∧ ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ∈ N ∧ ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ∈ N ) → 〈 ( ( 2nd ‘ 𝐴 ) ·N ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) 〉 ~Q 〈 ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) | |
| 57 | 29 51 55 56 | syl3anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 〈 ( ( 2nd ‘ 𝐴 ) ·N ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) ) 〉 ~Q 〈 ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) |
| 58 | 25 57 | eqbrtrid | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 〈 ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ~Q 〈 ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) |
| 59 | mulpipq2 | ⊢ ( ( 𝐴 ∈ ( N × N ) ∧ 𝐵 ∈ ( N × N ) ) → ( 𝐴 ·pQ 𝐵 ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) 〉 ) | |
| 60 | 27 33 59 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ 𝐵 ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) 〉 ) |
| 61 | mulpipq2 | ⊢ ( ( 𝐴 ∈ ( N × N ) ∧ 𝐶 ∈ ( N × N ) ) → ( 𝐴 ·pQ 𝐶 ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) | |
| 62 | 27 37 61 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ 𝐶 ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) |
| 63 | 60 62 | oveq12d | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) = ( 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) 〉 +pQ 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) ) |
| 64 | mulclpi | ⊢ ( ( ( 1st ‘ 𝐴 ) ∈ N ∧ ( 1st ‘ 𝐵 ) ∈ N ) → ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ∈ N ) | |
| 65 | 31 35 64 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ∈ N ) |
| 66 | mulclpi | ⊢ ( ( ( 2nd ‘ 𝐴 ) ∈ N ∧ ( 2nd ‘ 𝐵 ) ∈ N ) → ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ∈ N ) | |
| 67 | 29 45 66 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ∈ N ) |
| 68 | mulclpi | ⊢ ( ( ( 1st ‘ 𝐴 ) ∈ N ∧ ( 1st ‘ 𝐶 ) ∈ N ) → ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ∈ N ) | |
| 69 | 31 43 68 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ∈ N ) |
| 70 | mulclpi | ⊢ ( ( ( 2nd ‘ 𝐴 ) ∈ N ∧ ( 2nd ‘ 𝐶 ) ∈ N ) → ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) | |
| 71 | 29 39 70 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) |
| 72 | addpipq | ⊢ ( ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ∈ N ∧ ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ∈ N ) ∧ ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ∈ N ∧ ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) ) → ( 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) 〉 +pQ 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) = 〈 ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) | |
| 73 | 65 67 69 71 72 | syl22anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) 〉 +pQ 〈 ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) = 〈 ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) |
| 74 | 63 73 | eqtrd | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) = 〈 ( ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) +N ( ( ( 1st ‘ 𝐴 ) ·N ( 1st ‘ 𝐶 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐵 ) ) ·N ( ( 2nd ‘ 𝐴 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) |
| 75 | relxp | ⊢ Rel ( N × N ) | |
| 76 | 1st2nd | ⊢ ( ( Rel ( N × N ) ∧ 𝐴 ∈ ( N × N ) ) → 𝐴 = 〈 ( 1st ‘ 𝐴 ) , ( 2nd ‘ 𝐴 ) 〉 ) | |
| 77 | 75 27 76 | sylancr | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 𝐴 = 〈 ( 1st ‘ 𝐴 ) , ( 2nd ‘ 𝐴 ) 〉 ) |
| 78 | addpipq2 | ⊢ ( ( 𝐵 ∈ ( N × N ) ∧ 𝐶 ∈ ( N × N ) ) → ( 𝐵 +pQ 𝐶 ) = 〈 ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) , ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) | |
| 79 | 33 37 78 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐵 +pQ 𝐶 ) = 〈 ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) , ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) |
| 80 | 77 79 | oveq12d | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) = ( 〈 ( 1st ‘ 𝐴 ) , ( 2nd ‘ 𝐴 ) 〉 ·pQ 〈 ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) , ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) ) |
| 81 | mulpipq | ⊢ ( ( ( ( 1st ‘ 𝐴 ) ∈ N ∧ ( 2nd ‘ 𝐴 ) ∈ N ) ∧ ( ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ∈ N ∧ ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ∈ N ) ) → ( 〈 ( 1st ‘ 𝐴 ) , ( 2nd ‘ 𝐴 ) 〉 ·pQ 〈 ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) , ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) | |
| 82 | 31 29 49 53 81 | syl22anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 〈 ( 1st ‘ 𝐴 ) , ( 2nd ‘ 𝐴 ) 〉 ·pQ 〈 ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) , ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) 〉 ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) |
| 83 | 80 82 | eqtrd | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) = 〈 ( ( 1st ‘ 𝐴 ) ·N ( ( ( 1st ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) +N ( ( 1st ‘ 𝐶 ) ·N ( 2nd ‘ 𝐵 ) ) ) ) , ( ( 2nd ‘ 𝐴 ) ·N ( ( 2nd ‘ 𝐵 ) ·N ( 2nd ‘ 𝐶 ) ) ) 〉 ) |
| 84 | 58 74 83 | 3brtr4d | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) ~Q ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) ) |
| 85 | mulpqf | ⊢ ·pQ : ( ( N × N ) × ( N × N ) ) ⟶ ( N × N ) | |
| 86 | 85 | fovcl | ⊢ ( ( 𝐴 ∈ ( N × N ) ∧ 𝐵 ∈ ( N × N ) ) → ( 𝐴 ·pQ 𝐵 ) ∈ ( N × N ) ) |
| 87 | 27 33 86 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ 𝐵 ) ∈ ( N × N ) ) |
| 88 | 85 | fovcl | ⊢ ( ( 𝐴 ∈ ( N × N ) ∧ 𝐶 ∈ ( N × N ) ) → ( 𝐴 ·pQ 𝐶 ) ∈ ( N × N ) ) |
| 89 | 27 37 88 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ 𝐶 ) ∈ ( N × N ) ) |
| 90 | addpqf | ⊢ +pQ : ( ( N × N ) × ( N × N ) ) ⟶ ( N × N ) | |
| 91 | 90 | fovcl | ⊢ ( ( ( 𝐴 ·pQ 𝐵 ) ∈ ( N × N ) ∧ ( 𝐴 ·pQ 𝐶 ) ∈ ( N × N ) ) → ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) ∈ ( N × N ) ) |
| 92 | 87 89 91 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) ∈ ( N × N ) ) |
| 93 | 90 | fovcl | ⊢ ( ( 𝐵 ∈ ( N × N ) ∧ 𝐶 ∈ ( N × N ) ) → ( 𝐵 +pQ 𝐶 ) ∈ ( N × N ) ) |
| 94 | 33 37 93 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐵 +pQ 𝐶 ) ∈ ( N × N ) ) |
| 95 | 85 | fovcl | ⊢ ( ( 𝐴 ∈ ( N × N ) ∧ ( 𝐵 +pQ 𝐶 ) ∈ ( N × N ) ) → ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) ∈ ( N × N ) ) |
| 96 | 27 94 95 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) ∈ ( N × N ) ) |
| 97 | nqereq | ⊢ ( ( ( ( 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 ) ) ) ) ) | |
| 98 | 92 96 97 | syl2anc | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( ( 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 ) ) ) ) ) |
| 99 | 84 98 | mpbid | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( [Q] ‘ ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) ) = ( [Q] ‘ ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) ) ) |
| 100 | 99 | eqcomd | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( [Q] ‘ ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) ) = ( [Q] ‘ ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) ) ) |
| 101 | mulerpq | ⊢ ( ( [Q] ‘ 𝐴 ) ·Q ( [Q] ‘ ( 𝐵 +pQ 𝐶 ) ) ) = ( [Q] ‘ ( 𝐴 ·pQ ( 𝐵 +pQ 𝐶 ) ) ) | |
| 102 | adderpq | ⊢ ( ( [Q] ‘ ( 𝐴 ·pQ 𝐵 ) ) +Q ( [Q] ‘ ( 𝐴 ·pQ 𝐶 ) ) ) = ( [Q] ‘ ( ( 𝐴 ·pQ 𝐵 ) +pQ ( 𝐴 ·pQ 𝐶 ) ) ) | |
| 103 | 100 101 102 | 3eqtr4g | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( [Q] ‘ 𝐴 ) ·Q ( [Q] ‘ ( 𝐵 +pQ 𝐶 ) ) ) = ( ( [Q] ‘ ( 𝐴 ·pQ 𝐵 ) ) +Q ( [Q] ‘ ( 𝐴 ·pQ 𝐶 ) ) ) ) |
| 104 | nqerid | ⊢ ( 𝐴 ∈ Q → ( [Q] ‘ 𝐴 ) = 𝐴 ) | |
| 105 | 104 | eqcomd | ⊢ ( 𝐴 ∈ Q → 𝐴 = ( [Q] ‘ 𝐴 ) ) |
| 106 | 105 | 3ad2ant1 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → 𝐴 = ( [Q] ‘ 𝐴 ) ) |
| 107 | addpqnq | ⊢ ( ( 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐵 +Q 𝐶 ) = ( [Q] ‘ ( 𝐵 +pQ 𝐶 ) ) ) | |
| 108 | 107 | 3adant1 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐵 +Q 𝐶 ) = ( [Q] ‘ ( 𝐵 +pQ 𝐶 ) ) ) |
| 109 | 106 108 | oveq12d | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·Q ( 𝐵 +Q 𝐶 ) ) = ( ( [Q] ‘ 𝐴 ) ·Q ( [Q] ‘ ( 𝐵 +pQ 𝐶 ) ) ) ) |
| 110 | mulpqnq | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ) → ( 𝐴 ·Q 𝐵 ) = ( [Q] ‘ ( 𝐴 ·pQ 𝐵 ) ) ) | |
| 111 | 110 | 3adant3 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·Q 𝐵 ) = ( [Q] ‘ ( 𝐴 ·pQ 𝐵 ) ) ) |
| 112 | mulpqnq | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·Q 𝐶 ) = ( [Q] ‘ ( 𝐴 ·pQ 𝐶 ) ) ) | |
| 113 | 112 | 3adant2 | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·Q 𝐶 ) = ( [Q] ‘ ( 𝐴 ·pQ 𝐶 ) ) ) |
| 114 | 111 113 | oveq12d | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( ( 𝐴 ·Q 𝐵 ) +Q ( 𝐴 ·Q 𝐶 ) ) = ( ( [Q] ‘ ( 𝐴 ·pQ 𝐵 ) ) +Q ( [Q] ‘ ( 𝐴 ·pQ 𝐶 ) ) ) ) |
| 115 | 103 109 114 | 3eqtr4d | ⊢ ( ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·Q ( 𝐵 +Q 𝐶 ) ) = ( ( 𝐴 ·Q 𝐵 ) +Q ( 𝐴 ·Q 𝐶 ) ) ) |
| 116 | addnqf | ⊢ +Q : ( Q × Q ) ⟶ Q | |
| 117 | 116 | fdmi | ⊢ dom +Q = ( Q × Q ) |
| 118 | 0nnq | ⊢ ¬ ∅ ∈ Q | |
| 119 | mulnqf | ⊢ ·Q : ( Q × Q ) ⟶ Q | |
| 120 | 119 | fdmi | ⊢ dom ·Q = ( Q × Q ) |
| 121 | 117 118 120 | ndmovdistr | ⊢ ( ¬ ( 𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q ) → ( 𝐴 ·Q ( 𝐵 +Q 𝐶 ) ) = ( ( 𝐴 ·Q 𝐵 ) +Q ( 𝐴 ·Q 𝐶 ) ) ) |
| 122 | 115 121 | pm2.61i | ⊢ ( 𝐴 ·Q ( 𝐵 +Q 𝐶 ) ) = ( ( 𝐴 ·Q 𝐵 ) +Q ( 𝐴 ·Q 𝐶 ) ) |