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Description: Scalar multiplication distributive law. (Contributed by NM, 30-May-1999) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | ax-hvdistr2 | ⊢ ( ( 𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ ) → ( ( 𝐴 + 𝐵 ) ·ℎ 𝐶 ) = ( ( 𝐴 ·ℎ 𝐶 ) +ℎ ( 𝐵 ·ℎ 𝐶 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | cA | ⊢ 𝐴 | |
| 1 | cc | ⊢ ℂ | |
| 2 | 0 1 | wcel | ⊢ 𝐴 ∈ ℂ |
| 3 | cB | ⊢ 𝐵 | |
| 4 | 3 1 | wcel | ⊢ 𝐵 ∈ ℂ |
| 5 | cC | ⊢ 𝐶 | |
| 6 | chba | ⊢ ℋ | |
| 7 | 5 6 | wcel | ⊢ 𝐶 ∈ ℋ |
| 8 | 2 4 7 | w3a | ⊢ ( 𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ ) |
| 9 | caddc | ⊢ + | |
| 10 | 0 3 9 | co | ⊢ ( 𝐴 + 𝐵 ) |
| 11 | csm | ⊢ ·ℎ | |
| 12 | 10 5 11 | co | ⊢ ( ( 𝐴 + 𝐵 ) ·ℎ 𝐶 ) |
| 13 | 0 5 11 | co | ⊢ ( 𝐴 ·ℎ 𝐶 ) |
| 14 | cva | ⊢ +ℎ | |
| 15 | 3 5 11 | co | ⊢ ( 𝐵 ·ℎ 𝐶 ) |
| 16 | 13 15 14 | co | ⊢ ( ( 𝐴 ·ℎ 𝐶 ) +ℎ ( 𝐵 ·ℎ 𝐶 ) ) |
| 17 | 12 16 | wceq | ⊢ ( ( 𝐴 + 𝐵 ) ·ℎ 𝐶 ) = ( ( 𝐴 ·ℎ 𝐶 ) +ℎ ( 𝐵 ·ℎ 𝐶 ) ) |
| 18 | 8 17 | wi | ⊢ ( ( 𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ ) → ( ( 𝐴 + 𝐵 ) ·ℎ 𝐶 ) = ( ( 𝐴 ·ℎ 𝐶 ) +ℎ ( 𝐵 ·ℎ 𝐶 ) ) ) |