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| Mirrors > Home > MPE Home > Th. List > logcld | Structured version Visualization version GIF version | ||
| Description: The logarithm of a nonzero complex number is a complex number. Deduction form of logcl 26813. (Contributed by David Moews, 28-Feb-2017.) |
| Ref | Expression |
|---|---|
| logcld.1 | ⊢ (𝜑 → 𝑋 ∈ ℂ) |
| logcld.2 | ⊢ (𝜑 → 𝑋 ≠ 0) |
| Ref | Expression |
|---|---|
| logcld | ⊢ (𝜑 → (log‘𝑋) ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | logcld.1 | . 2 ⊢ (𝜑 → 𝑋 ∈ ℂ) | |
| 2 | logcld.2 | . 2 ⊢ (𝜑 → 𝑋 ≠ 0) | |
| 3 | logcl 26813 | . 2 ⊢ ((𝑋 ∈ ℂ ∧ 𝑋 ≠ 0) → (log‘𝑋) ∈ ℂ) | |
| 4 | 1, 2, 3 | syl2anc 596 | 1 ⊢ (𝜑 → (log‘𝑋) ∈ ℂ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 ≠ wne 2957 ‘cfv 6537 ℂcc 11126 0cc0 11128 logclog 26799 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-inf2 9624 ax-cnex 11184 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 ax-pre-mulgt0 11205 ax-pre-sup 11206 ax-addf 11207 |
| 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 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4594 df-uni 4871 df-int 4911 df-iun 4956 df-iin 4957 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-se 5613 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-isom 6546 df-riota 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-of 7682 df-om 7867 df-1st 7990 df-2nd 7991 df-supp 8163 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-2o 8460 df-er 8700 df-map 8832 df-pm 8833 df-ixp 8909 df-en 8957 df-dom 8958 df-sdom 8959 df-fin 8960 df-fsupp 9336 df-fi 9385 df-sup 9416 df-inf 9417 df-oi 9486 df-card 9948 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-sub 11471 df-neg 11472 df-div 11900 df-nn 12262 df-2 12331 df-3 12332 df-4 12333 df-5 12334 df-6 12335 df-7 12336 df-8 12337 df-9 12338 df-n0 12533 df-z 12620 df-dec 12741 df-uz 12892 df-q 13002 df-rp 13047 df-xneg 13167 df-xadd 13168 df-xmul 13169 df-ioo 13406 df-ioc 13407 df-ico 13408 df-icc 13409 df-fz 13566 df-fzo 13714 df-fl 13857 df-mod 13935 df-seq 14070 df-exp 14130 df-fac 14342 df-bc 14371 df-hash 14399 df-shft 15144 df-cj 15190 df-re 15191 df-im 15192 df-sqrt 15326 df-abs 15327 df-limsup 15562 df-clim 15579 df-rlim 15580 df-sum 15778 df-ef 16159 df-sin 16161 df-cos 16162 df-pi 16164 df-struct 17245 df-sets 17262 df-slot 17280 df-ndx 17292 df-base 17308 df-ress 17329 df-plusg 17361 df-mulr 17362 df-starv 17363 df-sca 17364 df-vsca 17365 df-ip 17366 df-tset 17367 df-ple 17368 df-ds 17370 df-unif 17371 df-hom 17372 df-cco 17373 df-rest 17513 df-topn 17514 df-0g 17532 df-gsum 17533 df-topgen 17534 df-pt 17535 df-prds 17538 df-xrs 17594 df-qtop 17599 df-imas 17600 df-xps 17602 df-mre 17676 df-mrc 17677 df-acs 17679 df-mgm 18736 df-sgrp 18827 df-mnd 18843 df-submnd 18898 df-mulg 19197 df-cntz 19450 df-cmn 19915 df-psmet 21583 df-xmet 21584 df-met 21585 df-bl 21586 df-mopn 21587 df-fbas 21588 df-fg 21589 df-cnfld 21592 df-top 23125 df-topon 23142 df-topsp 23164 df-bases 23177 df-cld 23250 df-ntr 23251 df-cls 23252 df-nei 23329 df-lp 23367 df-perf 23368 df-cn 23458 df-cnp 23459 df-haus 23546 df-tx 23794 df-hmeo 23987 df-fil 24078 df-fm 24170 df-flim 24171 df-flf 24172 df-xms 24552 df-ms 24553 df-tms 24554 df-cncf 25112 df-limc 26100 df-dv 26101 df-log 26801 |
| This theorem is used by: logimclad 26817 eflogeq 26847 cosargd 26853 logcnlem3 26889 logcnlem4 26890 logcnlem5 26891 logcn 26892 dvloglem 26893 logf1o2 26895 logtayl 26905 logtayl2 26907 mulcxp 26930 dvcncxp1 26988 cxpeq 27002 logrec 27008 logbcl 27012 logb1 27014 relogbreexp 27020 nnlogbexp 27026 logbrec 27027 ang180lem1 27054 ang180lem2 27055 ang180lem3 27056 ang180lem4 27057 lawcos 27061 isosctrlem1 27063 isosctrlem2 27064 asinf 27117 atanf 27125 asinneg 27131 efiasin 27133 asinbnd 27144 atanneg 27152 atancj 27155 efiatan 27157 atanlogaddlem 27158 atanlogadd 27159 atanlogsublem 27160 atanlogsub 27161 efiatan2 27162 2efiatan 27163 atantan 27168 atanbndlem 27170 dvatan 27180 atantayl 27182 efrlim 27214 lgamgulmlem2 27274 lgamgulmlem3 27275 lgamgulmlem5 27277 lgamgulmlem6 27278 lgamgulm2 27280 lgambdd 27281 lgamcvg2 27299 gamcvg 27300 gamp1 27302 gamcvg2lem 27303 arginv 33226 argcj 33227 hgt750lemd 35164 logdivsqrle 35166 hgt750lemb 35172 iprodgam 36329 dvasin 38461 aks4d1p1p1 42937 dvrelog2 42938 dvrelog3 42939 dvrelog2b 42940 dvrelogpow2b 42942 aks4d1p1p6 42947 aks4d1p1p7 42948 aks4d1p1p5 42949 cxp112d 43224 cxp111d 43225 readvrec2 43244 readvrec 43245 readvcot 43247 isosctrlem1ALT 45764 stirlinglem4 46913 stirlinglem5 46914 stirlinglem7 46916 stirlinglem12 46921 stirlinglem14 46923 |
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