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| Mirrors > Home > MPE Home > Th. List > joinlmuladdmuld | Structured version Visualization version GIF version | ||
| Description: Join AB+CB into (A+C) on LHS. (Contributed by David A. Wheeler, 26-Oct-2019.) |
| Ref | Expression |
|---|---|
| joinlmuladdmuld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| joinlmuladdmuld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| joinlmuladdmuld.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| joinlmuladdmuld.4 | ⊢ (𝜑 → ((𝐴 · 𝐵) + (𝐶 · 𝐵)) = 𝐷) |
| Ref | Expression |
|---|---|
| joinlmuladdmuld | ⊢ (𝜑 → ((𝐴 + 𝐶) · 𝐵) = 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | joinlmuladdmuld.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | joinlmuladdmuld.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 3 | joinlmuladdmuld.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 4 | 1, 2, 3 | adddird 11341 | . 2 ⊢ (𝜑 → ((𝐴 + 𝐶) · 𝐵) = ((𝐴 · 𝐵) + (𝐶 · 𝐵))) |
| 5 | joinlmuladdmuld.4 | . 2 ⊢ (𝜑 → ((𝐴 · 𝐵) + (𝐶 · 𝐵)) = 𝐷) | |
| 6 | 4, 5 | eqtrd 2795 | 1 ⊢ (𝜑 → ((𝐴 + 𝐶) · 𝐵) = 𝐷) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 (class class class)co 7424 ℂcc 11205 + caddc 11210 · cmul 11212 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-addcl 11267 ax-mulcom 11271 ax-distr 11274 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-un 4150 df-nul 4278 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-iota 6497 df-fv 6551 df-ov 7427 |
| This theorem is used by: 1p1times 11488 div4p1lem1div2 12608 ltdifltdiv 13981 discr1 14390 arisum 16038 bezoutlem3 16723 bezoutlem4 16724 mbfi1fseqlem4 26048 itgmulc2 26163 tangtx 26843 binom4 27187 axcontlem8 29558 zringfrac 34136 constrrtcclem 34416 cos9thpiminplylem2 34465 quadfac 43392 int-rightdistd 45317 sin5tlem4 48058 fmtnorec2lem 48763 joinlmuladdmuli 51080 |
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