| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > times2 | Structured version Visualization version GIF version | ||
| Description: A number times 2. (Contributed by NM, 16-Oct-2007.) |
| Ref | Expression |
|---|---|
| times2 | ⊢ (𝐴 ∈ ℂ → (𝐴 · 2) = (𝐴 + 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cn 12218 | . . 3 ⊢ 2 ∈ ℂ | |
| 2 | mulcom 11110 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 2 ∈ ℂ) → (𝐴 · 2) = (2 · 𝐴)) | |
| 3 | 1, 2 | mpan2 691 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 2) = (2 · 𝐴)) |
| 4 | 2times 12274 | . 2 ⊢ (𝐴 ∈ ℂ → (2 · 𝐴) = (𝐴 + 𝐴)) | |
| 5 | 3, 4 | eqtrd 2769 | 1 ⊢ (𝐴 ∈ ℂ → (𝐴 · 2) = (𝐴 + 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 (class class class)co 7356 ℂcc 11022 + caddc 11027 · cmul 11029 2c2 12198 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 ax-resscn 11081 ax-1cn 11082 ax-icn 11083 ax-addcl 11084 ax-mulcl 11086 ax-mulcom 11088 ax-mulass 11090 ax-distr 11091 ax-1rid 11094 ax-cnre 11097 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-rex 3059 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-br 5097 df-iota 6446 df-fv 6498 df-ov 7359 df-2 12206 |
| This theorem is referenced by: times2i 12277 avglt1 12377 times2d 12383 |
| Copyright terms: Public domain | W3C validator |