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| Mirrors > Home > MPE Home > Th. List > logdmopn | Structured version Visualization version GIF version | ||
| Description: The "continuous domain" of log is an open set. (Contributed by Mario Carneiro, 7-Apr-2015.) |
| Ref | Expression |
|---|---|
| logcn.d | ⊢ 𝐷 = (ℂ ∖ (-∞(,]0)) |
| Ref | Expression |
|---|---|
| logdmopn | ⊢ 𝐷 ∈ (TopOpen‘ℂfld) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | logcn.d | . 2 ⊢ 𝐷 = (ℂ ∖ (-∞(,]0)) | |
| 2 | eqid 2765 | . . . . 5 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld) | |
| 3 | 2 | recld2 24933 | . . . 4 ⊢ ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 4 | 0re 11198 | . . . . . 6 ⊢ 0 ∈ ℝ | |
| 5 | iocmnfcld 24886 | . . . . . 6 ⊢ (0 ∈ ℝ → (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,)))) | |
| 6 | 4, 5 | ax-mp 5 | . . . . 5 ⊢ (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,))) |
| 7 | tgioo4 24923 | . . . . . 6 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ) | |
| 8 | 7 | fveq2i 6874 | . . . . 5 ⊢ (Clsd‘(topGen‘ran (,))) = (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 9 | 6, 8 | eleqtri 2863 | . . . 4 ⊢ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 10 | restcldr 23292 | . . . 4 ⊢ ((ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) ∧ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ))) → (-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld))) | |
| 11 | 3, 9, 10 | mp2an 704 | . . 3 ⊢ (-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 12 | unicntop 24903 | . . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂfld) | |
| 13 | 12 | cldopn 23149 | . . 3 ⊢ ((-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld)) |
| 14 | 11, 13 | ax-mp 5 | . 2 ⊢ (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld) |
| 15 | 1, 14 | eqeltri 2861 | 1 ⊢ 𝐷 ∈ (TopOpen‘ℂfld) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1563 ∈ wcel 2145 ∖ cdif 3904 ran crn 5653 ‘cfv 6525 (class class class)co 7400 ℂcc 11086 ℝcr 11087 0cc0 11088 -∞cmnf 11229 (,)cioo 13363 (,]cioc 13364 ↾t crest 17463 TopOpenctopn 17464 topGenctg 17480 ℂfldccnfld 21482 Clsdccld 23134 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4869 df-int 4909 df-iun 4954 df-iin 4955 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-er 8682 df-map 8814 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-fi 9359 df-sup 9390 df-inf 9391 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12225 df-2 12294 df-3 12295 df-4 12296 df-5 12297 df-6 12298 df-7 12299 df-8 12300 df-9 12301 df-n0 12496 df-z 12583 df-dec 12703 df-uz 12854 df-q 12964 df-rp 13008 df-xneg 13128 df-xadd 13129 df-xmul 13130 df-ioo 13367 df-ioc 13368 df-fz 13527 df-seq 14029 df-exp 14089 df-cj 15140 df-re 15141 df-im 15142 df-sqrt 15276 df-abs 15277 df-struct 17197 df-slot 17232 df-ndx 17244 df-base 17260 df-plusg 17313 df-mulr 17314 df-starv 17315 df-tset 17319 df-ple 17320 df-ds 17322 df-unif 17323 df-rest 17465 df-topn 17466 df-topgen 17486 df-psmet 21474 df-xmet 21475 df-met 21476 df-bl 21477 df-mopn 21478 df-cnfld 21483 df-top 23012 df-topon 23029 df-topsp 23051 df-bases 23064 df-cld 23137 df-xms 24438 df-ms 24439 |
| This theorem is referenced by: dvlog 26774 efopnlem2 26780 atansopn 27055 |
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