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| Mirrors > Home > ILE Home > Th. List > 2mulicn | GIF version | ||
| Description: (2 · i) ∈ ℂ (common case). (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 2mulicn | ⊢ (2 · i) ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cn 9061 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 7974 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 8031 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2167 (class class class)co 5922 ℂcc 7877 ici 7881 · cmul 7884 2c2 9041 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-11 1520 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 ax-resscn 7971 ax-1re 7973 ax-icn 7974 ax-addrcl 7976 ax-mulcl 7977 |
| This theorem depends on definitions: df-bi 117 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-in 3163 df-ss 3170 df-2 9049 |
| This theorem is referenced by: 2muline0 9216 imval2 11059 sinval 11867 sinf 11869 sinneg 11891 efival 11897 sinadd 11901 sincn 15005 |
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