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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 26770. (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 26770 | . 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 2146 ≠ wne 2961 ‘cfv 6543 ℂcc 11116 0cc0 11118 logclog 26756 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-inf2 9620 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 ax-pre-sup 11196 ax-addf 11197 |
| 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 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-tp 4599 df-op 4601 df-uni 4878 df-int 4918 df-iun 4963 df-iin 4964 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-se 5620 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-of 7687 df-om 7872 df-1st 7995 df-2nd 7996 df-supp 8166 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-1o 8462 df-2o 8463 df-er 8703 df-map 8835 df-pm 8836 df-ixp 8905 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-fsupp 9332 df-fi 9381 df-sup 9412 df-inf 9413 df-oi 9482 df-card 9944 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-div 11890 df-nn 12252 df-2 12321 df-3 12322 df-4 12323 df-5 12324 df-6 12325 df-7 12326 df-8 12327 df-9 12328 df-n0 12523 df-z 12610 df-dec 12730 df-uz 12881 df-q 12991 df-rp 13035 df-xneg 13155 df-xadd 13156 df-xmul 13157 df-ioo 13394 df-ioc 13395 df-ico 13396 df-icc 13397 df-fz 13554 df-fzo 13702 df-fl 13845 df-mod 13923 df-seq 14058 df-exp 14118 df-fac 14330 df-bc 14359 df-hash 14387 df-shft 15130 df-cj 15176 df-re 15177 df-im 15178 df-sqrt 15312 df-abs 15313 df-limsup 15548 df-clim 15565 df-rlim 15566 df-sum 15764 df-ef 16146 df-sin 16148 df-cos 16149 df-pi 16151 df-struct 17232 df-sets 17249 df-slot 17267 df-ndx 17279 df-base 17295 df-ress 17316 df-plusg 17348 df-mulr 17349 df-starv 17350 df-sca 17351 df-vsca 17352 df-ip 17353 df-tset 17354 df-ple 17355 df-ds 17357 df-unif 17358 df-hom 17359 df-cco 17360 df-rest 17500 df-topn 17501 df-0g 17519 df-gsum 17520 df-topgen 17521 df-pt 17522 df-prds 17525 df-xrs 17581 df-qtop 17586 df-imas 17587 df-xps 17589 df-mre 17663 df-mrc 17664 df-acs 17666 df-mgm 18723 df-sgrp 18806 df-mnd 18822 df-submnd 18873 df-mulg 19165 df-cntz 19418 df-cmn 19883 df-psmet 21551 df-xmet 21552 df-met 21553 df-bl 21554 df-mopn 21555 df-fbas 21556 df-fg 21557 df-cnfld 21560 df-top 23088 df-topon 23105 df-topsp 23127 df-bases 23140 df-cld 23213 df-ntr 23214 df-cls 23215 df-nei 23292 df-lp 23330 df-perf 23331 df-cn 23421 df-cnp 23422 df-haus 23509 df-tx 23756 df-hmeo 23949 df-fil 24040 df-fm 24132 df-flim 24133 df-flf 24134 df-xms 24514 df-ms 24515 df-tms 24516 df-cncf 25074 df-limc 26062 df-dv 26063 df-log 26758 |
| This theorem is used by: logimclad 26774 eflogeq 26804 cosargd 26810 logcnlem3 26846 logcnlem4 26847 logcnlem5 26848 logcn 26849 dvloglem 26850 logf1o2 26852 logtayl 26862 logtayl2 26864 mulcxp 26887 dvcncxp1 26945 cxpeq 26959 logrec 26965 logbcl 26969 logb1 26971 relogbreexp 26977 nnlogbexp 26983 logbrec 26984 ang180lem1 27011 ang180lem2 27012 ang180lem3 27013 ang180lem4 27014 lawcos 27018 isosctrlem1 27020 isosctrlem2 27021 asinf 27074 atanf 27082 asinneg 27088 efiasin 27090 asinbnd 27101 atanneg 27109 atancj 27112 efiatan 27114 atanlogaddlem 27115 atanlogadd 27116 atanlogsublem 27117 atanlogsub 27118 efiatan2 27119 2efiatan 27120 atantan 27125 atanbndlem 27127 dvatan 27137 atantayl 27139 efrlim 27171 lgamgulmlem2 27231 lgamgulmlem3 27232 lgamgulmlem5 27234 lgamgulmlem6 27235 lgamgulm2 27237 lgambdd 27238 lgamcvg2 27256 gamcvg 27257 gamp1 27259 gamcvg2lem 27260 arginv 33129 argcj 33130 hgt750lemd 35067 logdivsqrle 35069 hgt750lemb 35075 iprodgam 36255 dvasin 38396 aks4d1p1p1 42871 dvrelog2 42872 dvrelog3 42873 dvrelog2b 42874 dvrelogpow2b 42876 aks4d1p1p6 42881 aks4d1p1p7 42882 aks4d1p1p5 42883 cxp112d 43143 cxp111d 43144 readvrec2 43163 readvrec 43164 readvcot 43166 isosctrlem1ALT 45683 stirlinglem4 46832 stirlinglem5 46833 stirlinglem7 46835 stirlinglem12 46840 stirlinglem14 46842 |
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