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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 2733 | . . . . 5 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld) | |
| 3 | 2 | recld2 24740 | . . . 4 ⊢ ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 4 | 0re 11124 | . . . . . 6 ⊢ 0 ∈ ℝ | |
| 5 | iocmnfcld 24693 | . . . . . 6 ⊢ (0 ∈ ℝ → (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,)))) | |
| 6 | 4, 5 | ax-mp 5 | . . . . 5 ⊢ (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,))) |
| 7 | tgioo4 24730 | . . . . . 6 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ) | |
| 8 | 7 | fveq2i 6834 | . . . . 5 ⊢ (Clsd‘(topGen‘ran (,))) = (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 9 | 6, 8 | eleqtri 2831 | . . . 4 ⊢ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 10 | restcldr 23099 | . . . 4 ⊢ ((ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) ∧ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ))) → (-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld))) | |
| 11 | 3, 9, 10 | mp2an 692 | . . 3 ⊢ (-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 12 | unicntop 24710 | . . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂfld) | |
| 13 | 12 | cldopn 22956 | . . 3 ⊢ ((-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld)) |
| 14 | 11, 13 | ax-mp 5 | . 2 ⊢ (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld) |
| 15 | 1, 14 | eqeltri 2829 | 1 ⊢ 𝐷 ∈ (TopOpen‘ℂfld) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2113 ∖ cdif 3896 ran crn 5622 ‘cfv 6489 (class class class)co 7355 ℂcc 11014 ℝcr 11015 0cc0 11016 -∞cmnf 11154 (,)cioo 13255 (,]cioc 13256 ↾t crest 17334 TopOpenctopn 17335 topGenctg 17351 ℂfldccnfld 21301 Clsdccld 22941 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-cnex 11072 ax-resscn 11073 ax-1cn 11074 ax-icn 11075 ax-addcl 11076 ax-addrcl 11077 ax-mulcl 11078 ax-mulrcl 11079 ax-mulcom 11080 ax-addass 11081 ax-mulass 11082 ax-distr 11083 ax-i2m1 11084 ax-1ne0 11085 ax-1rid 11086 ax-rnegex 11087 ax-rrecex 11088 ax-cnre 11089 ax-pre-lttri 11090 ax-pre-lttrn 11091 ax-pre-ltadd 11092 ax-pre-mulgt0 11093 ax-pre-sup 11094 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4861 df-int 4900 df-iun 4945 df-iin 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-riota 7312 df-ov 7358 df-oprab 7359 df-mpo 7360 df-om 7806 df-1st 7930 df-2nd 7931 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-er 8631 df-map 8761 df-en 8879 df-dom 8880 df-sdom 8881 df-fin 8882 df-fi 9305 df-sup 9336 df-inf 9337 df-pnf 11158 df-mnf 11159 df-xr 11160 df-ltxr 11161 df-le 11162 df-sub 11356 df-neg 11357 df-div 11785 df-nn 12136 df-2 12198 df-3 12199 df-4 12200 df-5 12201 df-6 12202 df-7 12203 df-8 12204 df-9 12205 df-n0 12392 df-z 12479 df-dec 12599 df-uz 12743 df-q 12857 df-rp 12901 df-xneg 13021 df-xadd 13022 df-xmul 13023 df-ioo 13259 df-ioc 13260 df-fz 13418 df-seq 13919 df-exp 13979 df-cj 15016 df-re 15017 df-im 15018 df-sqrt 15152 df-abs 15153 df-struct 17068 df-slot 17103 df-ndx 17115 df-base 17131 df-plusg 17184 df-mulr 17185 df-starv 17186 df-tset 17190 df-ple 17191 df-ds 17193 df-unif 17194 df-rest 17336 df-topn 17337 df-topgen 17357 df-psmet 21293 df-xmet 21294 df-met 21295 df-bl 21296 df-mopn 21297 df-cnfld 21302 df-top 22819 df-topon 22836 df-topsp 22858 df-bases 22871 df-cld 22944 df-xms 24245 df-ms 24246 |
| This theorem is referenced by: dvlog 26597 efopnlem2 26603 atansopn 26879 |
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