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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 9394 | . 2 ⊢ 6 ∈ ℝ | |
| 2 | 1 | recni 8344 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 ℂcc 8183 6c6 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 8277 ax-1re 8279 ax-addrcl 8282 |
| 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 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 |
| This theorem is used by: 7m1e6 9437 6p2e8 9463 6p3e9 9464 halfpm6th 9536 6p4e10 9864 6t2e12 9896 6t3e18 9897 6t5e30 9899 5recm6rec 9936 efi4p 12509 ef01bndlem 12548 cos01bnd 12550 3lcm2e6woprm 12889 6lcm4e12 12890 2exp8 13244 2exp11 13245 2exp16 13246 19prm 13261 83prm 13266 163prm 13268 317prm 13269 631prm 13270 1259lem1 13271 1259lem2 13272 1259lem3 13273 1259lem4 13274 1259lem5 13275 sincos6thpi 16069 sincos3rdpi 16070 log2ublem3 16223 log2ublog2 16224 ppiqub 16293 bclbnd 16307 bposlem8 16318 bposlem9 16319 2lgslem3d 16420 2lgsoddprmlem3d 16434 ex-exp 16946 ex-bc 16948 ex-gcd 16950 |
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