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| Mirrors > Home > ILE Home > Th. List > 0cn | Unicode version | ||
| Description: 0 is a complex number. (Contributed by NM, 19-Feb-2005.) |
| Ref | Expression |
|---|---|
| 0cn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-i2m1 8274 |
. 2
| |
| 2 | ax-icn 8264 |
. . . 4
| |
| 3 | mulcl 8296 |
. . . 4
| |
| 4 | 2, 2, 3 | mp2an 430 |
. . 3
|
| 5 | ax-1cn 8262 |
. . 3
| |
| 6 | addcl 8294 |
. . 3
| |
| 7 | 4, 5, 6 | mp2an 430 |
. 2
|
| 8 | 1, 7 | eqeltrri 2312 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 ax-1cn 8262 ax-icn 8264 ax-addcl 8265 ax-mulcl 8267 ax-i2m1 8274 |
| This theorem depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is referenced by: 0cnd 8309 c0ex 8310 addlid 8455 00id 8457 cnegexlem2 8492 negcl 8516 subid 8535 subid1 8536 neg0 8562 negid 8563 negsub 8564 subneg 8565 negneg 8566 negeq0 8570 negsubdi 8572 renegcl 8577 mul02 8704 mul01 8706 mulneg1 8712 ixi 8901 negap0 8948 muleqadd 8988 divvalap 8994 div0ap 9022 recgt0 9170 0m0e0 9395 2muline0 9509 elznn0 9638 ser0 10948 0exp0e1 10959 expeq0 10985 0exp 10989 sq0 11045 bcval5 11179 shftval3 11570 shftidt2 11575 cjap0 11651 cjne0 11652 abs0 11802 abs2dif 11850 clim0 12029 climz 12036 serclim0 12049 sumrbdclem 12122 fsum3cvg 12123 summodclem3 12125 summodclem2a 12126 fisumss 12137 fsumrelem 12216 ef0 12417 eftlub 12435 sin0 12474 tan0 12476 4sqlem11 13158 cncrng 14878 cnfld0 14880 cnbl0 15558 cnblcld 15559 dvconst 15718 dvconstre 15720 dvconstss 15722 dvcnp2cntop 15723 dvrecap 15737 dveflem 15750 plyun0 15760 plycjlemc 15784 plycj 15785 dvply2g 15790 sinhalfpilem 15815 sin2kpi 15835 cos2kpi 15836 sinkpi 15871 1sgm2ppw 16023 dcapnconst 17016 |
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