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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 12488 | . 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 1569 ∈ wcel 2146 (class class class)co 7427 ℂcc 11208 + caddc 11213 · cmul 11215 2c2 12407 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-mulcl 11272 ax-mulcom 11274 ax-mulass 11276 ax-distr 11277 ax-1rid 11280 ax-cnre 11283 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2838 df-rex 3090 df-rab 3416 df-v 3455 df-ss 3900 df-dif 4049 df-un 4153 df-nul 4281 df-if 4485 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-br 5106 df-iota 6500 df-fv 6554 df-ov 7430 df-2 12415 |
| This theorem is used by: 2t2e4 12516 binom2i 14366 rddif 15520 abs3lemi 15590 iseraltlem2 15862 prmreclem6 17111 mod2xi 17259 numexp2x 17268 prmlem2 17310 iihalf2 25266 pcoass 25357 ovolunlem1a 25829 tangtx 26846 sinq34lt0t 26850 eff1o 26889 ang180lem2 27150 dvatan 27275 basellem2 27421 basellem5 27424 chtub 27551 bposlem9 27631 ex-dvds 31069 norm3lem 31763 normpari 31768 polid2i 31771 ballotth 35223 heiborlem6 38890 sqsumi 43478 dirkertrigeqlem1 47247 fourierdlem94 47349 fourierdlem102 47357 fourierdlem111 47366 fourierdlem112 47367 fourierdlem113 47368 fourierdlem114 47369 sqwvfoura 47377 sqwvfourb 47378 fouriersw 47380 goldpolyfactor 48066 fmtnorec3 48772 2t6m3t4e0 49599 zlmodzxzequa 49747 |
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