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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 8115 |
. 2
| |
| 2 | ax-icn 8105 |
. . . 4
| |
| 3 | mulcl 8137 |
. . . 4
| |
| 4 | 2, 2, 3 | mp2an 426 |
. . 3
|
| 5 | ax-1cn 8103 |
. . 3
| |
| 6 | addcl 8135 |
. . 3
| |
| 7 | 4, 5, 6 | mp2an 426 |
. 2
|
| 8 | 1, 7 | eqeltrri 2303 |
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 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 ax-ext 2211 ax-1cn 8103 ax-icn 8105 ax-addcl 8106 ax-mulcl 8108 ax-i2m1 8115 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 |
| This theorem is referenced by: 0cnd 8150 c0ex 8151 addlid 8296 00id 8298 cnegexlem2 8333 negcl 8357 subid 8376 subid1 8377 neg0 8403 negid 8404 negsub 8405 subneg 8406 negneg 8407 negeq0 8411 negsubdi 8413 renegcl 8418 mul02 8544 mul01 8546 mulneg1 8552 ixi 8741 negap0 8788 muleqadd 8826 divvalap 8832 div0ap 8860 recgt0 9008 0m0e0 9233 2muline0 9347 elznn0 9472 ser0 10767 0exp0e1 10778 expeq0 10804 0exp 10808 sq0 10864 bcval5 10997 shftval3 11354 shftidt2 11359 cjap0 11434 cjne0 11435 abs0 11585 abs2dif 11633 clim0 11812 climz 11819 serclim0 11832 sumrbdclem 11904 fsum3cvg 11905 summodclem3 11907 summodclem2a 11908 fisumss 11919 fsumrelem 11998 ef0 12199 eftlub 12217 sin0 12256 tan0 12258 4sqlem11 12940 cncrng 14549 cnfld0 14551 cnbl0 15224 cnblcld 15225 dvconst 15384 dvconstre 15386 dvconstss 15388 dvcnp2cntop 15389 dvrecap 15403 dveflem 15416 plyun0 15426 plycjlemc 15450 plycj 15451 dvply2g 15456 sinhalfpilem 15481 sin2kpi 15501 cos2kpi 15502 sinkpi 15537 1sgm2ppw 15685 dcapnconst 16517 |
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