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| Mirrors > Home > MPE Home > Th. List > negicn | Structured version Visualization version GIF version | ||
| Description: -i is a complex number. (Contributed by David A. Wheeler, 7-Dec-2018.) |
| Ref | Expression |
|---|---|
| negicn | ⊢ -i ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-icn 11283 | . 2 ⊢ i ∈ ℂ | |
| 2 | negcl 11581 | . 2 ⊢ (i ∈ ℂ → -i ∈ ℂ) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -i ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 ℂcc 11222 ici 11226 -cneg 11566 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-resscn 11281 ax-1cn 11282 ax-icn 11283 ax-addcl 11284 ax-addrcl 11285 ax-mulcl 11286 ax-mulrcl 11287 ax-mulcom 11288 ax-addass 11289 ax-mulass 11290 ax-distr 11291 ax-i2m1 11292 ax-1ne0 11293 ax-1rid 11294 ax-rnegex 11295 ax-rrecex 11296 ax-cnre 11297 ax-pre-lttri 11298 ax-pre-lttrn 11299 ax-pre-ltadd 11300 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-riota 7397 df-ov 7443 df-oprab 7444 df-mpo 7445 df-er 8742 df-en 8999 df-dom 9000 df-sdom 9001 df-pnf 11369 df-mnf 11370 df-ltxr 11372 df-sub 11567 df-neg 11568 |
| This theorem is used by: irec 14369 imcl 15304 absimle 15502 recan 15530 sinf 16318 cosf 16319 tanval2 16327 tanval3 16328 efi4p 16331 sinneg 16340 cosneg 16341 efival 16346 sinhval 16348 coshval 16349 sinadd 16358 cosadd 16359 cphipval2 25589 dvsincos 26328 sincn 26798 coscn 26799 sinperlem 26836 pige3ALT 26875 sineq0 26879 tanregt0 26894 asinlem3a 27225 asinf 27227 asinneg 27241 efiasin 27243 sinasin 27244 asinsinlem 27246 asinsin 27247 asin1 27249 2efiatan 27273 dvatan 27290 atantayl 27292 nvpi 31296 ipval2 31336 4ipval2 31337 ipidsq 31339 dipcj 31343 dip0r 31346 ipasslem10 31468 polid2i 31786 dvasin 38813 areacirclem4 38820 sineq0ALT 46108 |
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