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Mirrors > Home > MPE Home > Th. List > 0cn | Structured version Visualization version GIF version |
Description: Zero is a complex number. See also 0cnALT 11031. (Contributed by NM, 19-Feb-2005.) |
Ref | Expression |
---|---|
0cn | ⊢ 0 ∈ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-i2m1 10762 | . 2 ⊢ ((i · i) + 1) = 0 | |
2 | ax-icn 10753 | . . . 4 ⊢ i ∈ ℂ | |
3 | mulcl 10778 | . . . 4 ⊢ ((i ∈ ℂ ∧ i ∈ ℂ) → (i · i) ∈ ℂ) | |
4 | 2, 2, 3 | mp2an 692 | . . 3 ⊢ (i · i) ∈ ℂ |
5 | ax-1cn 10752 | . . 3 ⊢ 1 ∈ ℂ | |
6 | addcl 10776 | . . 3 ⊢ (((i · i) ∈ ℂ ∧ 1 ∈ ℂ) → ((i · i) + 1) ∈ ℂ) | |
7 | 4, 5, 6 | mp2an 692 | . 2 ⊢ ((i · i) + 1) ∈ ℂ |
8 | 1, 7 | eqeltrri 2828 | 1 ⊢ 0 ∈ ℂ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2112 (class class class)co 7191 ℂcc 10692 0cc0 10694 1c1 10695 ici 10696 + caddc 10697 · cmul 10699 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-ext 2708 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-mulcl 10756 ax-i2m1 10762 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1788 df-cleq 2728 df-clel 2809 |
This theorem is referenced by: 0cnd 10791 c0ex 10792 1re 10798 00id 10972 mul02lem1 10973 mul02 10975 mul01 10976 addid1 10977 addid2 10980 negcl 11043 subid 11062 subid1 11063 neg0 11089 negid 11090 negsub 11091 subneg 11092 negneg 11093 negeq0 11097 negsubdi 11099 renegcli 11104 mulneg1 11233 msqge0 11318 ixi 11426 muleqadd 11441 div0 11485 ofsubge0 11794 0m0e0 11915 nn0sscn 12060 elznn0 12156 ser0 13593 0exp0e1 13605 0exp 13635 sq0 13726 sqeqor 13749 binom2 13750 bcval5 13849 s1co 14363 shftval3 14604 shftidt2 14609 cjne0 14691 sqrt0 14770 abs0 14814 abs00bd 14820 abs2dif 14861 clim0 15032 climz 15075 serclim0 15103 rlimneg 15175 sumrblem 15240 fsumcvg 15241 summolem2a 15244 sumss 15253 fsumss 15254 fsumcvg2 15256 fsumsplit 15269 sumsplit 15295 fsumrelem 15334 fsumrlim 15338 fsumo1 15339 0fallfac 15562 0risefac 15563 binomfallfac 15566 fsumcube 15585 ef0 15615 eftlub 15633 sin0 15673 tan0 15675 divalglem9 15925 sadadd2lem2 15972 sadadd3 15983 bezout 16066 pcmpt2 16409 4sqlem11 16471 ramcl 16545 4001lem2 16658 odadd1 19187 cnaddablx 19207 cnaddabl 19208 cnaddid 19209 frgpnabllem1 19212 cncrng 20338 cnfld0 20341 cnbl0 23625 cnblcld 23626 cnfldnm 23630 xrge0gsumle 23684 xrge0tsms 23685 cnheibor 23806 cnlmod 23991 csscld 24100 clsocv 24101 cnflduss 24207 cnfldcusp 24208 rrxmvallem 24255 rrxmval 24256 mbfss 24497 mbfmulc2lem 24498 0plef 24523 0pledm 24524 itg1ge0 24537 itg1addlem4 24550 itg1addlem4OLD 24551 itg2splitlem 24600 itg2addlem 24610 ibl0 24638 iblcnlem 24640 iblss2 24657 itgss3 24666 dvconst 24768 dvcnp2 24771 dvrec 24806 dvexp3 24829 dveflem 24830 dv11cn 24852 lhop1lem 24864 plyun0 25045 plyeq0lem 25058 coeeulem 25072 coeeu 25073 coef3 25080 dgrle 25091 0dgrb 25094 coefv0 25096 coemulc 25103 coe1termlem 25106 coe1term 25107 dgr0 25110 dgrmulc 25119 dgrcolem2 25122 vieta1lem2 25158 iaa 25172 aareccl 25173 aalioulem3 25181 taylthlem2 25220 psercn 25272 pserdvlem2 25274 abelthlem2 25278 abelthlem3 25279 abelthlem5 25281 abelthlem7 25284 abelth 25287 sin2kpi 25327 cos2kpi 25328 sinkpi 25365 efopn 25500 logtayl 25502 cxpval 25506 0cxp 25508 cxpexp 25510 cxpcl 25516 cxpge0 25525 mulcxplem 25526 mulcxp 25527 cxpmul2 25531 dvsqrt 25582 dvcnsqrt 25584 cxpcn3 25588 abscxpbnd 25593 efrlim 25806 ftalem2 25910 ftalem3 25911 ftalem4 25912 ftalem5 25913 ftalem7 25915 prmorcht 26014 muinv 26029 1sgm2ppw 26035 logfacbnd3 26058 logexprlim 26060 dchrelbas2 26072 dchrmulid2 26087 dchrfi 26090 dchrinv 26096 lgsdir2 26165 lgsdir 26167 addsqnreup 26278 dchrvmasumiflem1 26336 dchrvmasumiflem2 26337 rpvmasum2 26347 log2sumbnd 26379 selberg2lem 26385 logdivbnd 26391 ax5seglem8 26981 axlowdimlem6 26992 axlowdimlem13 26999 ex-co 28475 avril1 28500 vc0 28609 vcz 28610 cnaddabloOLD 28616 cnidOLD 28617 ipasslem8 28872 siilem2 28887 hvmul0 29059 hi01 29131 norm-iii 29175 h1de2ctlem 29590 pjmuli 29724 pjneli 29758 eigre 29870 eigorth 29873 elnlfn 29963 0cnfn 30015 0lnfn 30020 lnopunilem2 30046 xrge0tsmsd 30990 qqh0 31600 qqhcn 31607 eulerpartlemgs2 32013 sgnneg 32173 breprexpnat 32280 hgt750lem2 32298 subfacp1lem6 32814 sinccvglem 33297 abs2sqle 33305 abs2sqlt 33306 tan2h 35455 poimirlem16 35479 poimirlem19 35482 poimirlem31 35494 mblfinlem2 35501 ovoliunnfl 35505 voliunnfl 35507 dvtanlem 35512 ftc1anclem5 35540 cntotbnd 35640 60lcm7e420 39701 lcmineqlem10 39729 3lexlogpow5ineq1 39745 sn-1ne2 39943 sn-it0e0 40046 addinvcom 40062 sn-0tie0 40070 fltnltalem 40143 flcidc 40643 dvconstbi 41566 expgrowth 41567 dvradcnv2 41579 binomcxplemdvbinom 41585 binomcxplemnotnn0 41588 xralrple3 42527 negcncfg 43040 ioodvbdlimc1 43092 ioodvbdlimc2 43094 itgsinexplem1 43113 stoweidlem26 43185 stoweidlem36 43195 stoweidlem55 43214 stirlinglem8 43240 fourierdlem103 43368 sqwvfoura 43387 sqwvfourb 43388 ovn0lem 43721 nn0sumshdiglemA 45581 nn0sumshdiglemB 45582 nn0sumshdiglem1 45583 sec0 46076 |
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