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| Mirrors > Home > MPE Home > Th. List > 2mulicn | Structured version Visualization version GIF version | ||
| Description: (2 · i) ∈ ℂ. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 2mulicn | ⊢ (2 · i) ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cn 12418 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 11259 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 11316 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 (class class class)co 7420 ℂcc 11198 ici 11202 · 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-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-mulcl 11262 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2753 df-clel 2836 df-2 12405 |
| This theorem is used by: imval2 15318 sinf 16292 sinneg 16314 efival 16320 sinadd 16332 dvmptim 26290 sincn 26771 sineq0 26852 sinasin 27217 efiatan2 27245 2efiatan 27246 tanatan 27247 sineq0ALT 45918 |
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