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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 12311 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 11154 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 11211 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 (class class class)co 7410 ℂcc 11093 ici 11097 · cmul 11100 2c2 12290 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 ax-1cn 11153 ax-icn 11154 ax-addcl 11155 ax-mulcl 11157 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1810 df-cleq 2755 df-clel 2838 df-2 12298 |
| This theorem is referenced by: imval2 15198 sinf 16175 sinneg 16197 efival 16203 sinadd 16215 dvmptim 26129 sincn 26607 sineq0 26689 sinasin 27054 efiatan2 27082 2efiatan 27083 tanatan 27084 sineq0ALT 45665 |
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