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| Mirrors > Home > MPE Home > Th. List > times2i | Structured version Visualization version GIF version | ||
| Description: A number times 2. (Contributed by NM, 11-May-2004.) |
| Ref | Expression |
|---|---|
| 2timesi.1 | ⊢ 𝐴 ∈ ℂ |
| Ref | Expression |
|---|---|
| times2i | ⊢ (𝐴 · 2) = (𝐴 + 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2timesi.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | times2 12257 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 2) = (𝐴 + 𝐴)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 · 2) = (𝐴 + 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2111 (class class class)co 7346 ℂcc 11004 + caddc 11009 · cmul 11011 2c2 12180 |
| 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 2113 ax-9 2121 ax-ext 2703 ax-resscn 11063 ax-1cn 11064 ax-icn 11065 ax-addcl 11066 ax-mulcl 11068 ax-mulcom 11070 ax-mulass 11072 ax-distr 11073 ax-1rid 11076 ax-cnre 11079 |
| 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 2710 df-cleq 2723 df-clel 2806 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-ss 3914 df-nul 4281 df-if 4473 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-br 5090 df-iota 6437 df-fv 6489 df-ov 7349 df-2 12188 |
| This theorem is referenced by: 3t2e6 12286 4t2e8 12288 6t2e12 12692 7t2e14 12697 8t2e16 12703 9t2e18 12710 logi 26523 threehalves 32895 areaquad 43257 |
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