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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 12110 | . 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 2106 (class class class)co 7275 ℂcc 10869 + caddc 10874 · cmul 10876 2c2 12028 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-ext 2709 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-mulcl 10933 ax-mulcom 10935 ax-mulass 10937 ax-distr 10938 ax-1rid 10941 ax-cnre 10944 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-sb 2068 df-clab 2716 df-cleq 2730 df-clel 2816 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-br 5075 df-iota 6391 df-fv 6441 df-ov 7278 df-2 12036 |
This theorem is referenced by: 3t2e6 12139 4t2e8 12141 6t2e12 12541 7t2e14 12546 8t2e16 12552 9t2e18 12559 threehalves 31189 logi 33700 areaquad 41047 |
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