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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 16092 | . 2 ⊢ cos:ℂ⟶ℂ | |
| 2 | 1 | ffvelcdmi 7035 | 1 ⊢ (𝐴 ∈ ℂ → (cos‘𝐴) ∈ ℂ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ‘cfv 6498 ℂcc 11036 cosccos 16029 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-inf2 9562 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-int 4890 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-se 5585 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-isom 6507 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-er 8643 df-pm 8776 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-sup 9355 df-inf 9356 df-oi 9425 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-n0 12438 df-z 12525 df-uz 12789 df-rp 12943 df-ico 13304 df-fz 13462 df-fzo 13609 df-fl 13751 df-seq 13964 df-exp 14024 df-fac 14236 df-hash 14293 df-shft 15029 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 df-limsup 15433 df-clim 15450 df-rlim 15451 df-sum 15649 df-ef 16032 df-cos 16035 |
| This theorem is referenced by: tanval 16095 tancl 16096 coscld 16098 tanneg 16115 efmival 16120 sinadd 16131 cosadd 16132 tanaddlem 16133 sinsub 16135 cossub 16136 subsin 16138 sinmul 16139 cosmul 16140 addcos 16141 subcos 16142 sincossq 16143 sin2t 16144 cos2t 16145 cos2tsin 16146 demoivreALT 16168 sinhalfpilem 26427 sinmpi 26451 cosmpi 26452 sinppi 26453 cosppi 26454 efimpi 26455 sinhalfpip 26456 sinhalfpim 26457 coshalfpip 26458 coshalfpim 26459 asinsin 26856 acoscos 26857 atandmtan 26884 atantan 26887 sin2h 37931 cos2h 37932 tan2h 37933 dvtan 37991 itgsinexplem1 46382 itgsinexp 46383 dirkertrigeqlem1 46526 dirkertrigeqlem3 46528 sin3t 47319 cos3t 47320 sin5t 47326 goldracos5teq 47333 seccl 50225 cotcl 50227 recsec 50231 reccot 50233 rectan 50234 onetansqsecsq 50236 cotsqcscsq 50237 |
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