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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 8197 |
. 2
| |
| 2 | ax-icn 8187 |
. . . 4
| |
| 3 | mulcl 8219 |
. . . 4
| |
| 4 | 2, 2, 3 | mp2an 426 |
. . 3
|
| 5 | ax-1cn 8185 |
. . 3
| |
| 6 | addcl 8217 |
. . 3
| |
| 7 | 4, 5, 6 | mp2an 426 |
. 2
|
| 8 | 1, 7 | eqeltrri 2305 |
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 2213 ax-1cn 8185 ax-icn 8187 ax-addcl 8188 ax-mulcl 8190 ax-i2m1 8197 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-clel 2227 |
| This theorem is referenced by: 0cnd 8232 c0ex 8233 addlid 8377 00id 8379 cnegexlem2 8414 negcl 8438 subid 8457 subid1 8458 neg0 8484 negid 8485 negsub 8486 subneg 8487 negneg 8488 negeq0 8492 negsubdi 8494 renegcl 8499 mul02 8625 mul01 8627 mulneg1 8633 ixi 8822 negap0 8869 muleqadd 8907 divvalap 8913 div0ap 8941 recgt0 9089 0m0e0 9314 2muline0 9428 elznn0 9555 ser0 10858 0exp0e1 10869 expeq0 10895 0exp 10899 sq0 10955 bcval5 11088 shftval3 11467 shftidt2 11472 cjap0 11547 cjne0 11548 abs0 11698 abs2dif 11746 clim0 11925 climz 11932 serclim0 11945 sumrbdclem 12018 fsum3cvg 12019 summodclem3 12021 summodclem2a 12022 fisumss 12033 fsumrelem 12112 ef0 12313 eftlub 12331 sin0 12370 tan0 12372 4sqlem11 13054 cncrng 14665 cnfld0 14667 cnbl0 15345 cnblcld 15346 dvconst 15505 dvconstre 15507 dvconstss 15509 dvcnp2cntop 15510 dvrecap 15524 dveflem 15537 plyun0 15547 plycjlemc 15571 plycj 15572 dvply2g 15577 sinhalfpilem 15602 sin2kpi 15622 cos2kpi 15623 sinkpi 15658 1sgm2ppw 15809 dcapnconst 16794 |
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