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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 8305 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) | |
| 5 | 1, 2, 3, 4 | syl3anc 1278 | 1 ⊢ (𝜑 → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1402 ∈ wcel 2209 (class class class)co 6079 ℂcc 8171 + caddc 8176 · cmul 8178 |
| 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 8277 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 |
| This theorem is referenced by: subdi 8706 mulreim 8926 apadd1 8930 conjmulap 9053 cju 9285 flhalf 10720 modqcyc 10779 addmodlteq 10818 binom2 11071 binom3 11077 sqoddm1div8 11114 bcpasc 11187 hashf1lem2 11269 remim 11608 mulreap 11612 readd 11617 remullem 11619 imadd 11625 cjadd 11632 bdtrilem 11988 fsummulc2 12198 binomlem 12233 tanval3ap 12464 sinadd 12486 tanaddap 12489 bezoutlemnewy 12756 dvdsmulgcd 12785 lcmgcdlem 12838 pythagtriplem1 13027 pcaddlem 13101 mul4sqlem 13155 tangtx 15922 rpmulcxp 15994 rpcxpmul2 15998 binom4 16064 lgseisenlem2 16173 2lgsoddprmlem2 16208 2sqlem4 16220 2sqlem8 16225 |
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