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| Mirrors > Home > MPE Home > Th. List > coscl | Structured version Visualization version GIF version | ||
| Description: Closure of the cosine function with a complex argument. (Contributed by NM, 28-Apr-2005.) (Revised by Mario Carneiro, 30-Apr-2014.) |
| Ref | Expression |
|---|---|
| coscl | ⊢ (𝐴 ∈ ℂ → (cos‘𝐴) ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cosf 16138 | . 2 ⊢ cos:ℂ⟶ℂ | |
| 2 | 1 | ffvelcdmi 7058 | 1 ⊢ (𝐴 ∈ ℂ → (cos‘𝐴) ∈ ℂ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 ‘cfv 6515 ℂcc 11066 cosccos 16075 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7712 ax-inf2 9591 ax-cnex 11124 ax-resscn 11125 ax-1cn 11126 ax-icn 11127 ax-addcl 11128 ax-addrcl 11129 ax-mulcl 11130 ax-mulrcl 11131 ax-mulcom 11132 ax-addass 11133 ax-mulass 11134 ax-distr 11135 ax-i2m1 11136 ax-1ne0 11137 ax-1rid 11138 ax-rnegex 11139 ax-rrecex 11140 ax-cnre 11141 ax-pre-lttri 11142 ax-pre-lttrn 11143 ax-pre-ltadd 11144 ax-pre-mulgt0 11145 ax-pre-sup 11146 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4905 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-se 5599 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-isom 6524 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7841 df-1st 7964 df-2nd 7965 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-rdg 8374 df-1o 8430 df-er 8671 df-pm 8804 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-sup 9383 df-inf 9384 df-oi 9453 df-card 9892 df-pnf 11213 df-mnf 11214 df-xr 11215 df-ltxr 11216 df-le 11217 df-sub 11411 df-neg 11412 df-div 11840 df-nn 12206 df-2 12275 df-3 12276 df-n0 12477 df-z 12564 df-uz 12835 df-rp 12989 df-ico 13350 df-fz 13508 df-fzo 13655 df-fl 13797 df-seq 14010 df-exp 14070 df-fac 14282 df-hash 14339 df-shft 15075 df-cj 15107 df-re 15108 df-im 15109 df-sqrt 15243 df-abs 15244 df-limsup 15479 df-clim 15496 df-rlim 15497 df-sum 15695 df-ef 16078 df-cos 16081 |
| This theorem is referenced by: tanval 16141 tancl 16142 coscld 16144 tanneg 16161 efmival 16166 sinadd 16177 cosadd 16178 tanaddlem 16179 sinsub 16181 cossub 16182 subsin 16184 sinmul 16185 cosmul 16186 addcos 16187 subcos 16188 sincossq 16189 sin2t 16190 cos2t 16191 cos2tsin 16192 demoivreALT 16214 sinhalfpilem 26503 sinmpi 26527 cosmpi 26528 sinppi 26529 cosppi 26530 efimpi 26531 sinhalfpip 26532 sinhalfpim 26533 coshalfpip 26534 coshalfpim 26535 asinsin 26932 acoscos 26933 atandmtan 26960 atantan 26963 sin2h 38062 cos2h 38063 tan2h 38064 dvtan 38122 itgsinexplem1 46481 itgsinexp 46482 dirkertrigeqlem1 46625 dirkertrigeqlem3 46627 sin3t 47418 cos3t 47419 sin5t 47425 goldracos5teq 47432 seccl 50324 cotcl 50326 recsec 50330 reccot 50332 rectan 50333 onetansqsecsq 50335 cotsqcscsq 50336 |
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