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| Mirrors > Home > ILE Home > Th. List > 5cn | GIF version | ||
| Description: The number 5 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 5cn | ⊢ 5 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 5re 9393 | . 2 ⊢ 5 ∈ ℝ | |
| 2 | 1 | recni 8345 | 1 ⊢ 5 ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 ℂcc 8184 5c5 9368 |
| 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 8278 ax-1re 8280 ax-addrcl 8283 |
| 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 9373 df-3 9374 df-4 9375 df-5 9376 |
| This theorem is used by: 6m1e5 9437 5p2e7 9461 5p3e8 9462 5p4e9 9463 5p5e10 9864 5t2e10 9893 5recm6rec 9937 ef01bndlem 12549 5ndvds3 12727 5ndvds6 12728 dec5dvds 13221 dec5nprm 13223 2exp11 13246 2exp16 13247 prmlem1 13252 17prm 13261 139prm 13268 163prm 13269 317prm 13270 631prm 13271 1259lem1 13272 1259lem2 13273 1259lem3 13274 1259lem4 13275 log2ublem3 16235 log2ublog2 16236 ppiqub 16305 bclbnd 16319 bposlem4 16326 bposlem5 16327 bposlem6 16328 bposlem8 16330 bposlem9 16331 lgsdir2lem1 16364 2lgslem3c 16431 2lgsoddprmlem3d 16446 ex-fac 16959 |
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