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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 12250 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 11091 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 11146 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7361 ℂcc 11030 ici 11034 · cmul 11037 2c2 12230 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-mulcl 11094 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 df-clel 2812 df-2 12238 |
| This theorem is referenced by: imval2 15107 sinf 16085 sinneg 16107 efival 16113 sinadd 16125 dvmptim 25950 sincn 26425 sineq0 26504 sinasin 26869 efiatan2 26897 2efiatan 26898 tanatan 26899 sineq0ALT 45384 |
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