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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 9385 | . 2 ⊢ 6 ∈ ℝ | |
| 2 | 1 | recni 8338 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 ℂcc 8177 6c6 9359 |
| 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-addrcl 8276 |
| 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 df-3 9364 df-4 9365 df-5 9366 df-6 9367 |
| This theorem is used by: 7m1e6 9428 6p2e8 9454 6p3e9 9455 halfpm6th 9525 6p4e10 9848 6t2e12 9880 6t3e18 9881 6t5e30 9883 5recm6rec 9920 efi4p 12484 ef01bndlem 12523 cos01bnd 12525 3lcm2e6woprm 12864 6lcm4e12 12865 2exp8 13214 2exp11 13215 2exp16 13216 sincos6thpi 15943 sincos3rdpi 15944 log2ublem3 16085 log2ublog2 16086 2lgslem3d 16215 2lgsoddprmlem3d 16229 ex-exp 16741 ex-bc 16743 ex-gcd 16745 |
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