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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 9375 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-icn 8274 | . 2 ⊢ i ∈ ℂ | |
| 3 | 1, 2 | mulcli 8331 | 1 ⊢ (2 · i) ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 (class class class)co 6085 ℂcc 8177 ici 8181 · cmul 8184 2c2 9355 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8271 ax-1re 8273 ax-icn 8274 ax-addrcl 8276 ax-mulcl 8277 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-2 9363 |
| This theorem is used by: 2muline0 9530 imval2 11659 sinval 12469 sinf 12471 sinneg 12493 efival 12499 sinadd 12503 sincn 15870 |
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