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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 12343 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 11186 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 11243 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 (class class class)co 7414 ℂcc 11125 ici 11129 · cmul 11132 2c2 12322 |
| 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 2732 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-mulcl 11189 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2752 df-clel 2835 df-2 12330 |
| This theorem is used by: imval2 15241 sinf 16215 sinneg 16237 efival 16243 sinadd 16255 dvmptim 26200 sincn 26683 sineq0 26764 sinasin 27129 efiatan2 27157 2efiatan 27158 tanatan 27159 sineq0ALT 45762 |
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