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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 8290 |
. 2
| |
| 2 | ax-icn 8280 |
. . . 4
| |
| 3 | mulcl 8312 |
. . . 4
| |
| 4 | 2, 2, 3 | mp2an 430 |
. . 3
|
| 5 | ax-1cn 8278 |
. . 3
| |
| 6 | addcl 8310 |
. . 3
| |
| 7 | 4, 5, 6 | mp2an 430 |
. 2
|
| 8 | 1, 7 | eqeltrri 2312 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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 8278 ax-icn 8280 ax-addcl 8281 ax-mulcl 8283 ax-i2m1 8290 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: 0cnd 8325 c0ex 8326 addlid 8472 00id 8474 cnegexlem2 8509 negcl 8533 subid 8552 subid1 8553 neg0 8579 negid 8580 negsub 8581 subneg 8582 negneg 8583 negeq0 8587 negsubdi 8589 renegcl 8594 mul02 8721 mul01 8723 mulneg1 8729 ixi 8919 negap0 8966 muleqadd 9006 divvalap 9012 div0ap 9040 recgt0 9188 0m0e0 9425 2muline0 9541 elznn0 9668 ser0 10990 0exp0e1 11001 expeq0 11027 0exp 11031 sq0 11087 bcval5 11222 shftval3 11613 shftidt2 11618 cjap0 11694 cjne0 11695 abs0 11845 abs2dif 11894 clim0 12075 climz 12082 serclim0 12095 sumrbdclem 12168 fsum3cvg 12169 summodclem3 12171 summodclem2a 12172 fisumss 12183 fsumrelem 12262 ef0 12463 eftlub 12481 sin0 12520 tan0 12522 4sqlem11 13208 cncrng 15014 cnfld0 15016 cnbl0 15777 cnblcld 15778 dvconst 15937 dvconstre 15939 dvconstss 15941 dvcnp2cntop 15942 dvrecap 15956 dveflem 15969 plyun0 15979 plycjlemc 16003 plycj 16004 dvply2g 16009 sinhalfpilem 16035 sin2kpi 16055 cos2kpi 16056 sinkpi 16091 1sgm2ppw 16306 dcapnconst 17335 |
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