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| Mirrors > Home > MPE Home > Th. List > 2timesi | Structured version Visualization version GIF version | ||
| Description: Two times a number. (Contributed by NM, 1-Aug-1999.) |
| Ref | Expression |
|---|---|
| 2timesi.1 | ⊢ 𝐴 ∈ ℂ |
| Ref | Expression |
|---|---|
| 2timesi | ⊢ (2 · 𝐴) = (𝐴 + 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2timesi.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | 2times 12518 | . 2 ⊢ (𝐴 ∈ ℂ → (2 · 𝐴) = (𝐴 + 𝐴)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (2 · 𝐴) = (𝐴 + 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2147 (class class class)co 7451 ℂcc 11237 + caddc 11242 · cmul 11244 2c2 12437 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-resscn 11296 ax-1cn 11297 ax-icn 11298 ax-addcl 11299 ax-mulcl 11301 ax-mulcom 11303 ax-mulass 11305 ax-distr 11306 ax-1rid 11309 ax-cnre 11312 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-iota 6520 df-fv 6574 df-ov 7454 df-2 12445 |
| This theorem is used by: 2t2e4 12546 binom2i 14397 rddif 15552 abs3lemi 15622 iseraltlem2 15894 prmreclem6 17143 mod2xi 17291 numexp2x 17300 prmlem2 17342 iihalf2 25309 pcoass 25400 ovolunlem1a 25872 tangtx 26891 sinq34lt0t 26895 eff1o 26934 ang180lem2 27195 dvatan 27320 basellem2 27466 basellem5 27469 chtub 27596 bposlem9 27676 ex-dvds 31114 norm3lem 31808 normpari 31813 polid2i 31816 ballotth 35281 heiborlem6 39016 sqsumi 43604 dirkertrigeqlem1 47381 fourierdlem94 47483 fourierdlem102 47491 fourierdlem111 47500 fourierdlem112 47501 fourierdlem113 47502 fourierdlem114 47503 sqwvfoura 47511 sqwvfourb 47512 fouriersw 47514 goldpolyfactor 48200 fmtnorec3 48906 bru3eq 49756 2t6m3t4e0 49791 zlmodzxzequa 49939 |
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