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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 8157 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) | |
| 5 | 1, 2, 3, 4 | syl3anc 1271 | 1 ⊢ (𝜑 → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 (class class class)co 6013 ℂcc 8023 + caddc 8028 · cmul 8030 |
| 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 8129 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 |
| This theorem is referenced by: subdi 8557 mulreim 8777 apadd1 8781 conjmulap 8902 cju 9134 flhalf 10555 modqcyc 10614 addmodlteq 10653 binom2 10906 binom3 10912 sqoddm1div8 10948 bcpasc 11021 remim 11414 mulreap 11418 readd 11423 remullem 11425 imadd 11431 cjadd 11438 bdtrilem 11793 fsummulc2 12002 binomlem 12037 tanval3ap 12268 sinadd 12290 tanaddap 12293 bezoutlemnewy 12560 dvdsmulgcd 12589 lcmgcdlem 12642 pythagtriplem1 12831 pcaddlem 12905 mul4sqlem 12959 tangtx 15555 rpmulcxp 15626 rpcxpmul2 15630 binom4 15696 lgseisenlem2 15793 2lgsoddprmlem2 15828 2sqlem4 15840 2sqlem8 15845 |
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