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Mirrors > Home > MPE Home > Th. List > efiarg | Structured version Visualization version GIF version |
Description: The exponential of the "arg" function ℑ ∘ log. (Contributed by Mario Carneiro, 25-Feb-2015.) |
Ref | Expression |
---|---|
efiarg | ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(i · (ℑ‘(log‘𝐴)))) = (𝐴 / (abs‘𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | logcl 25920 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (log‘𝐴) ∈ ℂ) | |
2 | 1 | recld 15076 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (ℜ‘(log‘𝐴)) ∈ ℝ) |
3 | 2 | recnd 11180 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (ℜ‘(log‘𝐴)) ∈ ℂ) |
4 | efsub 15979 | . . 3 ⊢ (((log‘𝐴) ∈ ℂ ∧ (ℜ‘(log‘𝐴)) ∈ ℂ) → (exp‘((log‘𝐴) − (ℜ‘(log‘𝐴)))) = ((exp‘(log‘𝐴)) / (exp‘(ℜ‘(log‘𝐴))))) | |
5 | 1, 3, 4 | syl2anc 584 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘((log‘𝐴) − (ℜ‘(log‘𝐴)))) = ((exp‘(log‘𝐴)) / (exp‘(ℜ‘(log‘𝐴))))) |
6 | ax-icn 11107 | . . . . 5 ⊢ i ∈ ℂ | |
7 | 1 | imcld 15077 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (ℑ‘(log‘𝐴)) ∈ ℝ) |
8 | 7 | recnd 11180 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (ℑ‘(log‘𝐴)) ∈ ℂ) |
9 | mulcl 11132 | . . . . 5 ⊢ ((i ∈ ℂ ∧ (ℑ‘(log‘𝐴)) ∈ ℂ) → (i · (ℑ‘(log‘𝐴))) ∈ ℂ) | |
10 | 6, 8, 9 | sylancr 587 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (i · (ℑ‘(log‘𝐴))) ∈ ℂ) |
11 | 1 | replimd 15079 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (log‘𝐴) = ((ℜ‘(log‘𝐴)) + (i · (ℑ‘(log‘𝐴))))) |
12 | 3, 10, 11 | mvrladdd 11565 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → ((log‘𝐴) − (ℜ‘(log‘𝐴))) = (i · (ℑ‘(log‘𝐴)))) |
13 | 12 | fveq2d 6844 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘((log‘𝐴) − (ℜ‘(log‘𝐴)))) = (exp‘(i · (ℑ‘(log‘𝐴))))) |
14 | eflog 25928 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(log‘𝐴)) = 𝐴) | |
15 | relog 25948 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (ℜ‘(log‘𝐴)) = (log‘(abs‘𝐴))) | |
16 | 15 | fveq2d 6844 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(ℜ‘(log‘𝐴))) = (exp‘(log‘(abs‘𝐴)))) |
17 | abscl 15160 | . . . . . . 7 ⊢ (𝐴 ∈ ℂ → (abs‘𝐴) ∈ ℝ) | |
18 | 17 | adantr 481 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (abs‘𝐴) ∈ ℝ) |
19 | 18 | recnd 11180 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (abs‘𝐴) ∈ ℂ) |
20 | absrpcl 15170 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (abs‘𝐴) ∈ ℝ+) | |
21 | 20 | rpne0d 12959 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (abs‘𝐴) ≠ 0) |
22 | eflog 25928 | . . . . 5 ⊢ (((abs‘𝐴) ∈ ℂ ∧ (abs‘𝐴) ≠ 0) → (exp‘(log‘(abs‘𝐴))) = (abs‘𝐴)) | |
23 | 19, 21, 22 | syl2anc 584 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(log‘(abs‘𝐴))) = (abs‘𝐴)) |
24 | 16, 23 | eqtrd 2776 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(ℜ‘(log‘𝐴))) = (abs‘𝐴)) |
25 | 14, 24 | oveq12d 7372 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → ((exp‘(log‘𝐴)) / (exp‘(ℜ‘(log‘𝐴)))) = (𝐴 / (abs‘𝐴))) |
26 | 5, 13, 25 | 3eqtr3d 2784 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (exp‘(i · (ℑ‘(log‘𝐴)))) = (𝐴 / (abs‘𝐴))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ≠ wne 2942 ‘cfv 6494 (class class class)co 7354 ℂcc 11046 ℝcr 11047 0cc0 11048 ici 11050 · cmul 11053 − cmin 11382 / cdiv 11809 ℜcre 14979 ℑcim 14980 abscabs 15116 expce 15941 logclog 25906 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-rep 5241 ax-sep 5255 ax-nul 5262 ax-pow 5319 ax-pr 5383 ax-un 7669 ax-inf2 9574 ax-cnex 11104 ax-resscn 11105 ax-1cn 11106 ax-icn 11107 ax-addcl 11108 ax-addrcl 11109 ax-mulcl 11110 ax-mulrcl 11111 ax-mulcom 11112 ax-addass 11113 ax-mulass 11114 ax-distr 11115 ax-i2m1 11116 ax-1ne0 11117 ax-1rid 11118 ax-rnegex 11119 ax-rrecex 11120 ax-cnre 11121 ax-pre-lttri 11122 ax-pre-lttrn 11123 ax-pre-ltadd 11124 ax-pre-mulgt0 11125 ax-pre-sup 11126 ax-addf 11127 ax-mulf 11128 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3064 df-rex 3073 df-rmo 3352 df-reu 3353 df-rab 3407 df-v 3446 df-sbc 3739 df-csb 3855 df-dif 3912 df-un 3914 df-in 3916 df-ss 3926 df-pss 3928 df-nul 4282 df-if 4486 df-pw 4561 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4865 df-int 4907 df-iun 4955 df-iin 4956 df-br 5105 df-opab 5167 df-mpt 5188 df-tr 5222 df-id 5530 df-eprel 5536 df-po 5544 df-so 5545 df-fr 5587 df-se 5588 df-we 5589 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6252 df-ord 6319 df-on 6320 df-lim 6321 df-suc 6322 df-iota 6446 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-isom 6503 df-riota 7310 df-ov 7357 df-oprab 7358 df-mpo 7359 df-of 7614 df-om 7800 df-1st 7918 df-2nd 7919 df-supp 8090 df-frecs 8209 df-wrecs 8240 df-recs 8314 df-rdg 8353 df-1o 8409 df-2o 8410 df-er 8645 df-map 8764 df-pm 8765 df-ixp 8833 df-en 8881 df-dom 8882 df-sdom 8883 df-fin 8884 df-fsupp 9303 df-fi 9344 df-sup 9375 df-inf 9376 df-oi 9443 df-card 9872 df-pnf 11188 df-mnf 11189 df-xr 11190 df-ltxr 11191 df-le 11192 df-sub 11384 df-neg 11385 df-div 11810 df-nn 12151 df-2 12213 df-3 12214 df-4 12215 df-5 12216 df-6 12217 df-7 12218 df-8 12219 df-9 12220 df-n0 12411 df-z 12497 df-dec 12616 df-uz 12761 df-q 12871 df-rp 12913 df-xneg 13030 df-xadd 13031 df-xmul 13032 df-ioo 13265 df-ioc 13266 df-ico 13267 df-icc 13268 df-fz 13422 df-fzo 13565 df-fl 13694 df-mod 13772 df-seq 13904 df-exp 13965 df-fac 14171 df-bc 14200 df-hash 14228 df-shft 14949 df-cj 14981 df-re 14982 df-im 14983 df-sqrt 15117 df-abs 15118 df-limsup 15350 df-clim 15367 df-rlim 15368 df-sum 15568 df-ef 15947 df-sin 15949 df-cos 15950 df-pi 15952 df-struct 17016 df-sets 17033 df-slot 17051 df-ndx 17063 df-base 17081 df-ress 17110 df-plusg 17143 df-mulr 17144 df-starv 17145 df-sca 17146 df-vsca 17147 df-ip 17148 df-tset 17149 df-ple 17150 df-ds 17152 df-unif 17153 df-hom 17154 df-cco 17155 df-rest 17301 df-topn 17302 df-0g 17320 df-gsum 17321 df-topgen 17322 df-pt 17323 df-prds 17326 df-xrs 17381 df-qtop 17386 df-imas 17387 df-xps 17389 df-mre 17463 df-mrc 17464 df-acs 17466 df-mgm 18494 df-sgrp 18543 df-mnd 18554 df-submnd 18599 df-mulg 18869 df-cntz 19093 df-cmn 19560 df-psmet 20784 df-xmet 20785 df-met 20786 df-bl 20787 df-mopn 20788 df-fbas 20789 df-fg 20790 df-cnfld 20793 df-top 22239 df-topon 22256 df-topsp 22278 df-bases 22292 df-cld 22366 df-ntr 22367 df-cls 22368 df-nei 22445 df-lp 22483 df-perf 22484 df-cn 22574 df-cnp 22575 df-haus 22662 df-tx 22909 df-hmeo 23102 df-fil 23193 df-fm 23285 df-flim 23286 df-flf 23287 df-xms 23669 df-ms 23670 df-tms 23671 df-cncf 24237 df-limc 25226 df-dv 25227 df-log 25908 |
This theorem is referenced by: cosargd 25959 argregt0 25961 argrege0 25962 argimgt0 25963 tanarg 25970 lawcos 26162 |
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