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| Mirrors > Home > ILE Home > Th. List > 6cn | GIF version | ||
| Description: The number 6 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 6cn | ⊢ 6 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 6re 9388 | . 2 ⊢ 6 ∈ ℝ | |
| 2 | 1 | recni 8339 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 ℂcc 8178 6c6 9362 |
| 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 8272 ax-1re 8274 ax-addrcl 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 9366 df-3 9367 df-4 9368 df-5 9369 df-6 9370 |
| This theorem is used by: 7m1e6 9431 6p2e8 9457 6p3e9 9458 halfpm6th 9530 6p4e10 9858 6t2e12 9890 6t3e18 9891 6t5e30 9893 5recm6rec 9930 efi4p 12503 ef01bndlem 12542 cos01bnd 12544 3lcm2e6woprm 12883 6lcm4e12 12884 2exp8 13238 2exp11 13239 2exp16 13240 19prm 13255 83prm 13260 163prm 13262 317prm 13263 631prm 13264 1259lem1 13265 1259lem2 13266 1259lem3 13267 1259lem4 13268 1259lem5 13269 sincos6thpi 16035 sincos3rdpi 16036 log2ublem3 16184 log2ublog2 16185 ppiqub 16254 bclbnd 16268 bposlem8 16279 bposlem9 16280 2lgslem3d 16381 2lgsoddprmlem3d 16395 ex-exp 16907 ex-bc 16909 ex-gcd 16911 |
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