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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 2762 | . . . . 5 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld) | |
| 3 | 2 | recld2 25047 | . . . 4 ⊢ ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 4 | 0re 11238 | . . . . . 6 ⊢ 0 ∈ ℝ | |
| 5 | iocmnfcld 25000 | . . . . . 6 ⊢ (0 ∈ ℝ → (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,)))) | |
| 6 | 4, 5 | ax-mp 5 | . . . . 5 ⊢ (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,))) |
| 7 | tgioo4 25037 | . . . . . 6 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ) | |
| 8 | 7 | fveq2i 6885 | . . . . 5 ⊢ (Clsd‘(topGen‘ran (,))) = (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 9 | 6, 8 | eleqtri 2860 | . . . 4 ⊢ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 10 | restcldr 23405 | . . . 4 ⊢ ((ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) ∧ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ))) → (-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld))) | |
| 11 | 3, 9, 10 | mp2an 705 | . . 3 ⊢ (-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 12 | unicntop 25017 | . . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂfld) | |
| 13 | 12 | cldopn 23262 | . . 3 ⊢ ((-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld)) |
| 14 | 11, 13 | ax-mp 5 | . 2 ⊢ (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld) |
| 15 | 1, 14 | eqeltri 2858 | 1 ⊢ 𝐷 ∈ (TopOpen‘ℂfld) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 ∖ cdif 3899 ran crn 5660 ‘cfv 6537 (class class class)co 7417 ℂcc 11126 ℝcr 11127 0cc0 11128 -∞cmnf 11269 (,)cioo 13402 (,]cioc 13403 ↾t crest 17511 TopOpenctopn 17512 topGenctg 17528 ℂfldccnfld 21591 Clsdccld 23247 |
| 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-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 |
| 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-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-riota 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-er 8700 df-map 8832 df-en 8957 df-dom 8958 df-sdom 8959 df-fin 8960 df-fi 9385 df-sup 9416 df-inf 9417 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-fz 13566 df-seq 14070 df-exp 14130 df-cj 15190 df-re 15191 df-im 15192 df-sqrt 15326 df-abs 15327 df-struct 17245 df-slot 17280 df-ndx 17292 df-base 17308 df-plusg 17361 df-mulr 17362 df-starv 17363 df-tset 17367 df-ple 17368 df-ds 17370 df-unif 17371 df-rest 17513 df-topn 17514 df-topgen 17534 df-psmet 21583 df-xmet 21584 df-met 21585 df-bl 21586 df-mopn 21587 df-cnfld 21592 df-top 23125 df-topon 23142 df-topsp 23164 df-bases 23177 df-cld 23250 df-xms 24552 df-ms 24553 |
| This theorem is used by: dvlog 26896 efopnlem2 26902 atansopn 27177 |
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