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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 12353 | . 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 1560 ∈ wcel 2142 (class class class)co 7396 ℂcc 11071 + caddc 11076 · cmul 11078 2c2 12272 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-ext 2734 ax-resscn 11130 ax-1cn 11131 ax-icn 11132 ax-addcl 11133 ax-mulcl 11135 ax-mulcom 11137 ax-mulass 11139 ax-distr 11140 ax-1rid 11143 ax-cnre 11146 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-sb 2091 df-clab 2741 df-cleq 2754 df-clel 2837 df-rex 3087 df-rab 3415 df-v 3456 df-dif 3907 df-un 3909 df-ss 3921 df-nul 4286 df-if 4481 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-iota 6477 df-fv 6529 df-ov 7399 df-2 12280 |
| This theorem is referenced by: 2t2e4 12381 binom2i 14225 rddif 15368 abs3lemi 15438 iseraltlem2 15710 prmreclem6 16957 mod2xi 17105 numexp2x 17114 prmlem2 17156 iihalf2 24995 pcoass 25086 ovolunlem1a 25558 tangtx 26570 sinq34lt0t 26574 eff1o 26614 ang180lem2 26875 dvatan 27000 basellem2 27146 basellem5 27149 chtub 27276 bposlem9 27356 ex-dvds 30658 norm3lem 31352 normpari 31357 polid2i 31360 ballotth 34835 heiborlem6 38315 sqsumi 42890 dirkertrigeqlem1 46672 fourierdlem94 46774 fourierdlem102 46782 fourierdlem111 46791 fourierdlem112 46792 fourierdlem113 46793 fourierdlem114 46794 sqwvfoura 46802 sqwvfourb 46803 fouriersw 46805 sin5tlem1 47467 fmtnorec3 48157 2t6m3t4e0 48970 zlmodzxzequa 49118 |
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