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| Mirrors > Home > HSE Home > Th. List > hvmulcom | Structured version Visualization version GIF version | ||
| Description: Scalar multiplication commutative law. (Contributed by NM, 19-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvmulcom | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ (𝐵 ·ℎ 𝐶)) = (𝐵 ·ℎ (𝐴 ·ℎ 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mulcom 11241 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 · 𝐵) = (𝐵 · 𝐴)) | |
| 2 | 1 | oveq1d 7446 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 · 𝐵) ·ℎ 𝐶) = ((𝐵 · 𝐴) ·ℎ 𝐶)) |
| 3 | 2 | 3adant3 1133 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝐴 · 𝐵) ·ℎ 𝐶) = ((𝐵 · 𝐴) ·ℎ 𝐶)) |
| 4 | ax-hvmulass 31026 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝐴 · 𝐵) ·ℎ 𝐶) = (𝐴 ·ℎ (𝐵 ·ℎ 𝐶))) | |
| 5 | ax-hvmulass 31026 | . . 3 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝐵 · 𝐴) ·ℎ 𝐶) = (𝐵 ·ℎ (𝐴 ·ℎ 𝐶))) | |
| 6 | 5 | 3com12 1124 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝐵 · 𝐴) ·ℎ 𝐶) = (𝐵 ·ℎ (𝐴 ·ℎ 𝐶))) |
| 7 | 3, 4, 6 | 3eqtr3d 2785 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ (𝐵 ·ℎ 𝐶)) = (𝐵 ·ℎ (𝐴 ·ℎ 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1540 ∈ wcel 2108 (class class class)co 7431 ℂcc 11153 · cmul 11160 ℋchba 30938 ·ℎ csm 30940 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-ext 2708 ax-mulcom 11219 ax-hvmulass 31026 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2065 df-clab 2715 df-cleq 2729 df-clel 2816 df-rab 3437 df-v 3482 df-dif 3954 df-un 3956 df-ss 3968 df-nul 4334 df-if 4526 df-sn 4627 df-pr 4629 df-op 4633 df-uni 4908 df-br 5144 df-iota 6514 df-fv 6569 df-ov 7434 |
| This theorem is referenced by: hvmulcomi 31066 hvsubdistr1 31068 lnopmi 32019 |
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