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Mirrors > Home > ILE Home > Th. List > 2cn | Unicode version |
Description: The number 2 is a complex number. (Contributed by NM, 30-Jul-2004.) |
Ref | Expression |
---|---|
2cn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2re 8897 | . 2 | |
2 | 1 | recni 7884 | 1 |
Colors of variables: wff set class |
Syntax hints: wcel 2128 cc 7724 c2 8878 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-11 1486 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2139 ax-resscn 7818 ax-1re 7820 ax-addrcl 7823 |
This theorem depends on definitions: df-bi 116 df-nf 1441 df-sb 1743 df-clab 2144 df-cleq 2150 df-clel 2153 df-in 3108 df-ss 3115 df-2 8886 |
This theorem is referenced by: 2ex 8899 2cnd 8900 2m1e1 8945 3m1e2 8947 2p2e4 8954 times2 8956 2div2e1 8959 1p2e3 8961 3p3e6 8969 4p3e7 8971 5p3e8 8974 6p3e9 8977 2t1e2 8980 2t2e4 8981 3t3e9 8984 2t0e0 8986 4d2e2 8987 2cnne0 9036 1mhlfehlf 9045 8th4div3 9046 halfpm6th 9047 2mulicn 9049 2muliap0 9051 halfcl 9053 half0 9055 2halves 9056 halfaddsub 9061 div4p1lem1div2 9080 3halfnz 9255 zneo 9259 nneoor 9260 zeo 9263 7p3e10 9363 4t4e16 9387 6t3e18 9393 7t7e49 9402 8t5e40 9406 9t9e81 9417 decbin0 9428 decbin2 9429 halfthird 9431 fztpval 9978 fz0tp 10016 fzo0to3tp 10111 2tnp1ge0ge0 10193 expubnd 10469 sq2 10507 sq4e2t8 10509 cu2 10510 subsq2 10519 binom2sub 10524 binom3 10528 zesq 10529 fac2 10598 fac3 10599 faclbnd2 10609 bcn2 10631 4bc2eq6 10641 crre 10750 addcj 10784 imval2 10787 resqrexlemover 10903 resqrexlemcalc1 10907 resqrexlemnm 10911 resqrexlemcvg 10912 amgm2 11011 arisum 11388 arisum2 11389 geo2sum2 11405 geo2lim 11406 geoihalfsum 11412 efcllemp 11548 ege2le3 11561 tanval2ap 11603 tanval3ap 11604 efi4p 11607 efival 11622 sinadd 11626 cosadd 11627 sinmul 11634 cosmul 11635 cos2tsin 11641 ef01bndlem 11646 sin01bnd 11647 cos01bnd 11648 cos1bnd 11649 cos2bnd 11650 cos01gt0 11652 sin02gt0 11653 sin4lt0 11656 cos12dec 11657 egt2lt3 11669 odd2np1lem 11755 odd2np1 11756 ltoddhalfle 11776 halfleoddlt 11777 opoe 11778 omoe 11779 opeo 11780 omeo 11781 nno 11789 nn0o 11790 flodddiv4 11817 6gcd4e2 11870 3lcm2e6woprm 11954 6lcm4e12 11955 sqrt2irrlem 12026 oddpwdclemodd 12037 coscn 13062 sinhalfpilem 13083 cospi 13092 ef2pi 13097 ef2kpi 13098 efper 13099 sinperlem 13100 sin2kpi 13103 cos2kpi 13104 sin2pim 13105 cos2pim 13106 ptolemy 13116 sincosq3sgn 13120 sincosq4sgn 13121 sinq12gt0 13122 cosq23lt0 13125 coseq00topi 13127 tangtx 13130 sincos4thpi 13132 sincos6thpi 13134 sincos3rdpi 13135 pigt3 13136 abssinper 13138 coskpi 13140 cosq34lt1 13142 logsqrt 13214 2logb9irrALT 13262 ex-fl 13272 ex-ceil 13273 ex-exp 13274 ex-fac 13275 |
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