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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 12312 | . 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 1542 ∈ wcel 2114 (class class class)co 7367 ℂcc 11036 + caddc 11041 · cmul 11043 2c2 12236 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-mulcl 11100 ax-mulcom 11102 ax-mulass 11104 ax-distr 11105 ax-1rid 11108 ax-cnre 11111 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-iota 6454 df-fv 6506 df-ov 7370 df-2 12244 |
| This theorem is referenced by: 2t2e4 12340 binom2i 14174 rddif 15303 abs3lemi 15373 iseraltlem2 15645 prmreclem6 16892 mod2xi 17040 numexp2x 17049 prmlem2 17090 iihalf2 24900 pcoass 24991 ovolunlem1a 25463 tangtx 26469 sinq34lt0t 26473 eff1o 26513 ang180lem2 26774 dvatan 26899 basellem2 27045 basellem5 27048 chtub 27175 bposlem9 27255 ex-dvds 30526 norm3lem 31220 normpari 31225 polid2i 31228 ballotth 34682 heiborlem6 38137 sqsumi 42713 dirkertrigeqlem1 46526 fourierdlem94 46628 fourierdlem102 46636 fourierdlem111 46645 fourierdlem112 46646 fourierdlem113 46647 fourierdlem114 46648 sqwvfoura 46656 sqwvfourb 46657 fouriersw 46659 sin5tlem1 47321 fmtnorec3 48011 2t6m3t4e0 48824 zlmodzxzequa 48972 |
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