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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 9357 | . 2 ⊢ 3 ∈ ℝ | |
| 2 | 1 | recni 8328 | 1 ⊢ 3 ∈ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 ℂcc 8167 3c3 9335 |
| This theorem was proved from 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 8261 ax-1re 8263 ax-addrcl 8266 |
| This theorem 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 9342 df-3 9343 |
| This theorem is referenced by: 3ex 9359 3m1e2 9403 4m1e3 9404 3p2e5 9425 3p3e6 9426 4p4e8 9429 5p4e9 9432 3t1e3 9439 3t2e6 9440 3t3e9 9441 8th4div3 9503 halfpm6th 9504 6p4e10 9827 9t8e72 9883 halfthird 9898 fzo0to42pr 10616 sq3 11051 expnass 11060 fac3 11148 4bc3eq4 11190 ef01bndlem 12501 sin01bnd 12502 cos01bnd 12503 cos1bnd 12504 cos2bnd 12505 cos01gt0 12508 3dvdsdec 12610 3dvds2dec 12611 5ndvds3 12679 3lcm2e6woprm 12842 2exp6 13190 2exp16 13194 cosq23lt0 15857 tangtx 15862 sincos6thpi 15866 sincos3rdpi 15867 pigt3 15868 binom4 16004 lgsdir2lem1 16061 lgsdir2lem5 16065 2lgslem3b 16127 2lgslem3d 16129 2lgsoddprmlem3c 16142 2lgsoddprmlem3d 16143 ex-exp 16655 ex-dvds 16658 ex-gcd 16659 |
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