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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 12218 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 11083 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 11137 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2113 (class class class)co 7356 ℂcc 11022 ici 11026 · cmul 11029 2c2 12198 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 ax-1cn 11082 ax-icn 11083 ax-addcl 11084 ax-mulcl 11086 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1781 df-cleq 2726 df-clel 2809 df-2 12206 |
| This theorem is referenced by: imval2 15072 sinf 16047 sinneg 16069 efival 16075 sinadd 16087 dvmptim 25928 sincn 26408 sineq0 26487 sinasin 26853 efiatan2 26881 2efiatan 26882 tanatan 26883 sineq0ALT 45119 |
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