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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 12274 | . 2 ⊢ (𝐴 ∈ ℂ → (2 · 𝐴) = (𝐴 + 𝐴)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (2 · 𝐴) = (𝐴 + 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2113 (class class class)co 7356 ℂcc 11022 + caddc 11027 · cmul 11029 2c2 12198 |
| 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 2115 ax-9 2123 ax-ext 2706 ax-resscn 11081 ax-1cn 11082 ax-icn 11083 ax-addcl 11084 ax-mulcl 11086 ax-mulcom 11088 ax-mulass 11090 ax-distr 11091 ax-1rid 11094 ax-cnre 11097 |
| 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 2713 df-cleq 2726 df-clel 2809 df-rex 3059 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-br 5097 df-iota 6446 df-fv 6498 df-ov 7359 df-2 12206 |
| This theorem is referenced by: 2t2e4 12302 binom2i 14133 rddif 15262 abs3lemi 15332 iseraltlem2 15604 prmreclem6 16847 mod2xi 16995 numexp2x 17004 prmlem2 17045 iihalf2 24882 pcoass 24978 ovolunlem1a 25451 tangtx 26468 sinq34lt0t 26472 eff1o 26512 ang180lem2 26774 dvatan 26899 basellem2 27046 basellem5 27049 chtub 27177 bposlem9 27257 ex-dvds 30480 norm3lem 31173 normpari 31178 polid2i 31181 ballotth 34644 heiborlem6 37956 sqsumi 42478 dirkertrigeqlem1 46284 fourierdlem94 46386 fourierdlem102 46394 fourierdlem111 46403 fourierdlem112 46404 fourierdlem113 46405 fourierdlem114 46406 sqwvfoura 46414 sqwvfourb 46415 fouriersw 46417 fmtnorec3 47736 2t6m3t4e0 48536 zlmodzxzequa 48684 |
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