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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 7938 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) | |
5 | 1, 2, 3, 4 | syl3anc 1238 | 1 ⊢ (𝜑 → (𝐴 · (𝐵 + 𝐶)) = ((𝐴 · 𝐵) + (𝐴 · 𝐶))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1353 ∈ wcel 2148 (class class class)co 5870 ℂcc 7804 + caddc 7809 · cmul 7811 |
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 7910 |
This theorem depends on definitions: df-bi 117 df-3an 980 |
This theorem is referenced by: subdi 8336 mulreim 8555 apadd1 8559 conjmulap 8680 cju 8912 flhalf 10295 modqcyc 10352 addmodlteq 10391 binom2 10624 binom3 10630 sqoddm1div8 10666 bcpasc 10737 remim 10860 mulreap 10864 readd 10869 remullem 10871 imadd 10877 cjadd 10884 bdtrilem 11238 fsummulc2 11447 binomlem 11482 tanval3ap 11713 sinadd 11735 tanaddap 11738 bezoutlemnewy 11987 dvdsmulgcd 12016 lcmgcdlem 12067 pythagtriplem1 12255 pcaddlem 12328 mul4sqlem 12381 tangtx 14041 rpmulcxp 14112 binom4 14179 2sqlem4 14236 2sqlem8 14241 |
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