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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 12393 | . 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 2146 (class class class)co 7419 ℂcc 11115 + caddc 11120 · cmul 11122 2c2 12312 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-mulcl 11179 ax-mulcom 11181 ax-mulass 11183 ax-distr 11184 ax-1rid 11187 ax-cnre 11190 |
| 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 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-iota 6496 df-fv 6548 df-ov 7422 df-2 12320 |
| This theorem is used by: 2t2e4 12421 binom2i 14268 rddif 15418 abs3lemi 15488 iseraltlem2 15760 prmreclem6 17005 mod2xi 17153 numexp2x 17162 prmlem2 17204 iihalf2 25145 pcoass 25236 ovolunlem1a 25708 tangtx 26723 sinq34lt0t 26727 eff1o 26767 ang180lem2 27028 dvatan 27153 basellem2 27299 basellem5 27302 chtub 27429 bposlem9 27509 ex-dvds 30880 norm3lem 31574 normpari 31579 polid2i 31582 ballotth 34995 heiborlem6 38527 sqsumi 43102 dirkertrigeqlem1 46872 fourierdlem94 46974 fourierdlem102 46982 fourierdlem111 46991 fourierdlem112 46992 fourierdlem113 46993 fourierdlem114 46994 sqwvfoura 47002 sqwvfourb 47003 fouriersw 47005 sin5tlem1 47670 fmtnorec3 48360 2t6m3t4e0 49187 zlmodzxzequa 49335 |
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