| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > negicn | GIF version | ||
| Description: -i is a complex number (common case). (Contributed by David A. Wheeler, 7-Dec-2018.) |
| Ref | Expression |
|---|---|
| negicn | ⊢ -i ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-icn 8268 | . 2 ⊢ i ∈ ℂ | |
| 2 | negcl 8520 | . 2 ⊢ (i ∈ ℂ → -i ∈ ℂ) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -i ∈ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 ℂcc 8171 ici 8175 -cneg 8492 |
| 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-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-setind 4682 ax-resscn 8265 ax-1cn 8266 ax-icn 8268 ax-addcl 8269 ax-addrcl 8270 ax-mulcl 8271 ax-addcom 8273 ax-addass 8275 ax-distr 8277 ax-i2m1 8278 ax-0id 8281 ax-rnegex 8282 ax-cnre 8284 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-iota 5335 df-fun 5377 df-fv 5383 df-riota 6032 df-ov 6082 df-oprab 6083 df-mpo 6084 df-sub 8493 df-neg 8494 |
| This theorem is referenced by: irec 11059 imcl 11602 absimle 11833 recan 11858 sinval 12452 cosval 12453 sinf 12454 cosf 12455 tanval2ap 12463 tanval3ap 12464 efi4p 12467 sinneg 12476 cosneg 12477 efival 12482 sinadd 12486 cosadd 12487 sincn 15853 coscn 15854 sinperlem 15892 |
| Copyright terms: Public domain | W3C validator |