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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 12040 | . 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 1539 ∈ wcel 2108 (class class class)co 7255 ℂcc 10800 + caddc 10805 · cmul 10807 2c2 11958 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-ext 2709 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-mulcl 10864 ax-mulcom 10866 ax-mulass 10868 ax-distr 10869 ax-1rid 10872 ax-cnre 10875 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-sb 2069 df-clab 2716 df-cleq 2730 df-clel 2817 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-iota 6376 df-fv 6426 df-ov 7258 df-2 11966 |
This theorem is referenced by: 3t2e6 12069 4t2e8 12071 6t2e12 12470 7t2e14 12475 8t2e16 12481 9t2e18 12488 threehalves 31091 logi 33606 areaquad 40963 |
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