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| Mirrors > Home > ILE Home > Th. List > adddid | GIF version | ||
| Description: Distributive law (left-distributivity). (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| addcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| addassd.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| Ref | Expression |
|---|---|
| adddid | ⊢ (𝜑 → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | addcld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | addassd.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 4 | adddi 8275 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) | |
| 5 | 1, 2, 3, 4 | syl3anc 1274 | 1 ⊢ (𝜑 → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2205 (class class class)co 6058 ℂcc 8141 + caddc 8146 · cmul 8148 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-distr 8247 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 |
| This theorem is referenced by: subdi 8676 mulreim 8896 apadd1 8900 conjmulap 9023 cju 9255 flhalf 10689 modqcyc 10748 addmodlteq 10787 binom2 11040 binom3 11046 sqoddm1div8 11083 bcpasc 11156 remim 11573 mulreap 11577 readd 11582 remullem 11584 imadd 11590 cjadd 11597 bdtrilem 11953 fsummulc2 12163 binomlem 12198 tanval3ap 12429 sinadd 12451 tanaddap 12454 bezoutlemnewy 12721 dvdsmulgcd 12750 lcmgcdlem 12803 pythagtriplem1 12992 pcaddlem 13066 mul4sqlem 13120 tangtx 15833 rpmulcxp 15904 rpcxpmul2 15908 binom4 15974 lgseisenlem2 16074 2lgsoddprmlem2 16109 2sqlem4 16121 2sqlem8 16126 |
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