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Theorem
2cn
5927
Description:
The number 2 is a complex number.
Assertion
Ref
Expression
2cn
Proof of Theorem
2cn
Step
Hyp
Ref
Expression
1
2re
5926
. 2
2
1
recn
5286
1
Colors of variables:
wff
set
class
Syntax hints:
wcel
955
cc
5204
c2
5908
This theorem is referenced by:
2p2e4
5948
times2t
5952
3p3e6
5955
4p3e7
5957
5p3e8
5960
6p3e9
5964
7p3e10
5967
2t2e4
5969
3t3e9
5971
4d2e2
5974
8th4div3
5978
halfpm6th
5979
halfclt
5980
half0t
5982
2halvest
5986
halfaddsubt
5988
nneo
6144
zeot
6146
zneo
6147
zneoOLD
6148
flhalft
6189
expubndt
6539
sq2
6569
cu2
6571
subsq2t
6574
discrlem1
6586
nnesq
6592
sqr2irrlem1
6654
sqr2irrlem4
6657
cjmulvalt
6737
recjt
6753
imcjt
6754
abs3lem
6838
fac2
6874
fac3
6875
faclbnd2
6883
faclbnd4lem1
6885
faclbnd4lem3
6887
faclbnd4lem4
6888
faclbnd5
6890
fsum4
6963
climaddlem3
7052
fnsmnt
7161
erelem2
7262
erelem3
7263
ele3lem
7268
ege2le3lem2
7271
efaddlem8
7287
efaddlem12
7291
efaddlem20
7299
efaddlem22
7301
eirrlem1
7330
ef4p
7340
sinclt
7373
efi4pt
7377
sinnegt
7384
efivalt
7389
sinadd
7393
cosadd
7394
subcost
7402
sin01bndlem1
7409
sin01bndlem3
7411
cos01bndlem2
7412
cos01bndlem3
7413
cos1bnd
7416
cos2bnd
7417
cos01gt0
7419
sin02gt0
7420
sin4lt0
7423
znnenlem
7443
znnenlemOLD
7444
znnen
7445
ruclem1
7453
ruclem3
7455
ioo2bl
7851
bcthlem1
7933
bcthlem17
7949
bcthlem21
7953
bcthlem33
7965
ipval2
8291
ipid
8297
cnph
8409
ip0i
8415
ip1ilem
8416
ipdirilem
8419
ubthlem8
8467
ubthlem9
8468
minveclem16
8491
minveclem18
8493
minveclem19
8494
minveclem27
8502
minveclem35
8510
minveclem36
8511
minveclem37
8512
minveclem38
8513
sinco
8586
cosco
8587
sincn
8588
coscn
8589
pilem1
8590
sinhalfpilem
8598
cospi
8601
sin2pi
8603
cos2pi
8604
sinperlem2
8606
sinper
8609
cosper
8610
sin2pim
8611
cos2pim
8612
sinhalfpip
8616
sinhalfpim
8617
coshalfpip
8618
coshalfpim
8619
sincosq3sgn
8623
sincosq4sgn
8624
sinq12gt0t
8625
sincosq1eq
8626
sincos4thpi
8627
sincos6thpi
8628
cosh111lem1
8629
eff1o
8670
pilog
8690
hvsubcan2
8852
norm-ii
8925
norm3lem
8937
normpar2
8944
polid2
8945
hhph
8966
projlem3
9104
projlem4
9105
projlem5
9106
projlem7
9108
projlem18
9119
mayete3
9590
cdj3lem1
10266
mslb1
10473
2wsms
10474
msra3
10475
This theorem was proved from axioms:
ax-1
4
ax-2
5
ax-3
6
ax-mp
7
ax-7
959
ax-gen
960
ax-8
961
ax-9
962
ax-10
963
ax-11
964
ax-12
965
ax-13
966
ax-14
967
ax-17
968
ax-4
970
ax-5o
972
ax-6o
975
ax-9o
1119
ax-10o
1136
ax-16
1206
ax-11o
1213
ax-ext
1452
ax-rep
2683
ax-sep
2693
ax-nul
2700
ax-pow
2732
ax-pr
2769
ax-un
2857
ax-inf2
4597
This theorem depends on definitions:
df-bi
147
df-or
224
df-an
225
df-3or
774
df-3an
775
df-ex
978
df-sb
1168
df-eu
1375
df-mo
1376
df-clab
1457
df-cleq
1462
df-clel
1465
df-ne
1579
df-ral
1641
df-rex
1642
df-reu
1643
df-rab
1644
df-v
1803
df-sbc
1932
df-csb
1992
df-dif
2039
df-un
2040
df-in
2041
df-ss
2043
df-pss
2045
df-nul
2271
df-if
2352
df-pw
2392
df-sn
2402
df-pr
2403
df-tp
2405
df-op
2406
df-uni
2494
df-int
2524
df-iun
2558
df-br
2610
df-opab
2657
df-tr
2671
df-eprel
2821
df-id
2824
df-po
2831
df-so
2841
df-fr
2907
df-we
2924
df-ord
2941
df-on
2942
df-lim
2943
df-suc
2944
df-om
3122
df-xp
3174
df-rel
3175
df-cnv
3176
df-co
3177
df-dm
3178
df-rn
3179
df-res
3180
df-ima
3181
df-fun
3182
df-fn
3183
df-f
3184
df-fv
3188
df-rdg
3917
df-opr
3950
df-oprab
3951
df-1st
4063
df-2nd
4064
df-1o
4117
df-oadd
4119
df-omul
4120
df-er
4245
df-ec
4247
df-qs
4250
df-ni
4972
df-pli
4973
df-mi
4974
df-lti
4975
df-plpq
5007
df-mpq
5008
df-enq
5009
df-nq
5010
df-plq
5011
df-mq
5012
df-rq
5013
df-ltq
5014
df-1q
5015
df-np
5058
df-1p
5059
df-plp
5060
df-mp
5061
df-ltp
5062
df-plpr
5136
df-mpr
5137
df-enr
5138
df-nr
5139
df-plr
5140
df-mr
5141
df-ltr
5142
df-0r
5143
df-1r
5144
df-m1r
5145
df-c
5212
df-0
5213
df-1
5214
df-i
5215
df-r
5216
df-plus
5217
df-mul
5218
df-sub
5328
df-neg
5330
df-2
5917
Copyright terms:
Public domain