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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 12478 | . 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 2145 (class class class)co 7420 ℂcc 11198 + caddc 11203 · cmul 11205 2c2 12397 |
| 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 2147 ax-9 2155 ax-ext 2733 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-mulcl 11262 ax-mulcom 11264 ax-mulass 11266 ax-distr 11267 ax-1rid 11270 ax-cnre 11273 |
| 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 2740 df-cleq 2753 df-clel 2836 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-iota 6494 df-fv 6546 df-ov 7423 df-2 12405 |
| This theorem is used by: 2t2e4 12506 binom2i 14356 rddif 15508 abs3lemi 15578 iseraltlem2 15850 prmreclem6 17099 mod2xi 17247 numexp2x 17256 prmlem2 17298 iihalf2 25254 pcoass 25345 ovolunlem1a 25817 tangtx 26834 sinq34lt0t 26838 eff1o 26877 ang180lem2 27138 dvatan 27263 basellem2 27409 basellem5 27412 chtub 27539 bposlem9 27619 ex-dvds 31057 norm3lem 31751 normpari 31756 polid2i 31759 ballotth 35170 heiborlem6 38750 sqsumi 43338 dirkertrigeqlem1 47107 fourierdlem94 47209 fourierdlem102 47217 fourierdlem111 47226 fourierdlem112 47227 fourierdlem113 47228 fourierdlem114 47229 sqwvfoura 47237 sqwvfourb 47238 fouriersw 47240 goldpolyfactor 47926 fmtnorec3 48632 2t6m3t4e0 49459 zlmodzxzequa 49607 |
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