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| Mirrors > Home > ILE Home > Th. List > 3cn | GIF version | ||
| Description: The number 3 is a complex number. (Contributed by FL, 17-Oct-2010.) |
| Ref | Expression |
|---|---|
| 3cn | ⊢ 3 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3re 9387 | . 2 ⊢ 3 ∈ ℝ | |
| 2 | 1 | recni 8344 | 1 ⊢ 3 ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 ℂcc 8183 3c3 9365 |
| 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 |
| This theorem is used by: 3ex 9389 3m1e2 9433 4m1e3 9434 3p2e5 9455 3p3e6 9456 4p4e8 9459 5p4e9 9462 3t1e3 9469 3t2e6 9470 2t3e6 9471 3t3e9 9472 8th4div3 9535 halfpm6th 9536 6p4e10 9863 9t8e72 9919 halfthird 9934 fzo0to42pr 10654 sq3 11093 expnass 11102 fac3 11191 4bc3eq4 11233 ef01bndlem 12547 sin01bnd 12548 cos01bnd 12549 cos1bnd 12550 cos2bnd 12551 cos01gt0 12554 3dvdsdec 12656 3dvds2dec 12657 5ndvds3 12725 3lcm2e6woprm 12888 2exp6 13241 2exp16 13245 13prm 13258 17prm 13259 19prm 13260 37prm 13263 43prm 13264 83prm 13265 139prm 13266 163prm 13267 317prm 13268 631prm 13269 1259lem1 13270 1259lem2 13271 1259lem3 13272 1259lem4 13273 1259lem5 13274 1259prm 13275 cosq23lt0 16077 tangtx 16082 sincos6thpi 16086 sincos3rdpi 16087 pigt3 16088 binom4 16236 log2tlbndlog2 16237 log2ublem2 16239 log2ublem3 16240 log2ublog2 16241 ppiqub 16310 chtqub 16313 bclbnd 16324 bposlem6 16333 bposlem8 16335 bposlem9 16336 lgsdir2lem1 16369 lgsdir2lem5 16373 2lgslem3b 16435 2lgslem3d 16437 2lgsoddprmlem3c 16450 2lgsoddprmlem3d 16451 ex-exp 16963 ex-dvds 16966 ex-gcd 16967 |
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