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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 8248 |
. 2
| |
| 2 | ax-icn 8238 |
. . . 4
| |
| 3 | mulcl 8270 |
. . . 4
| |
| 4 | 2, 2, 3 | mp2an 426 |
. . 3
|
| 5 | ax-1cn 8236 |
. . 3
| |
| 6 | addcl 8268 |
. . 3
| |
| 7 | 4, 5, 6 | mp2an 426 |
. 2
|
| 8 | 1, 7 | eqeltrri 2308 |
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 1496 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-4 1559 ax-17 1575 ax-ial 1583 ax-ext 2216 ax-1cn 8236 ax-icn 8238 ax-addcl 8239 ax-mulcl 8241 ax-i2m1 8248 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 df-clel 2230 |
| This theorem is referenced by: 0cnd 8283 c0ex 8284 addlid 8428 00id 8430 cnegexlem2 8465 negcl 8489 subid 8508 subid1 8509 neg0 8535 negid 8536 negsub 8537 subneg 8538 negneg 8539 negeq0 8543 negsubdi 8545 renegcl 8550 mul02 8677 mul01 8679 mulneg1 8685 ixi 8874 negap0 8921 muleqadd 8959 divvalap 8965 div0ap 8993 recgt0 9141 0m0e0 9366 2muline0 9480 elznn0 9609 ser0 10919 0exp0e1 10930 expeq0 10956 0exp 10960 sq0 11016 bcval5 11150 shftval3 11537 shftidt2 11542 cjap0 11617 cjne0 11618 abs0 11768 abs2dif 11816 clim0 11995 climz 12002 serclim0 12015 sumrbdclem 12088 fsum3cvg 12089 summodclem3 12091 summodclem2a 12092 fisumss 12103 fsumrelem 12182 ef0 12383 eftlub 12401 sin0 12440 tan0 12442 4sqlem11 13124 cncrng 14843 cnfld0 14845 cnbl0 15525 cnblcld 15526 dvconst 15685 dvconstre 15687 dvconstss 15689 dvcnp2cntop 15690 dvrecap 15704 dveflem 15717 plyun0 15727 plycjlemc 15751 plycj 15752 dvply2g 15757 sinhalfpilem 15782 sin2kpi 15802 cos2kpi 15803 sinkpi 15838 1sgm2ppw 15989 trimul0or 16971 dcapnconst 16973 |
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