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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 2761 | . . . . 5 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld) | |
| 3 | 2 | recld2 25114 | . . . 4 ⊢ ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) |
| 4 | 0re 11291 | . . . . . 6 ⊢ 0 ∈ ℝ | |
| 5 | iocmnfcld 25067 | . . . . . 6 ⊢ (0 ∈ ℝ → (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,)))) | |
| 6 | 4, 5 | ax-mp 5 | . . . . 5 ⊢ (-∞(,]0) ∈ (Clsd‘(topGen‘ran (,))) |
| 7 | tgioo4 25104 | . . . . . 6 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ) | |
| 8 | 7 | fveq2i 6880 | . . . . 5 ⊢ (Clsd‘(topGen‘ran (,))) = (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 9 | 6, 8 | eleqtri 2859 | . . . 4 ⊢ (-∞(,]0) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
| 10 | restcldr 23472 | . . . 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 25084 | . . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂfld) | |
| 13 | 12 | cldopn 23329 | . . 3 ⊢ ((-∞(,]0) ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld)) |
| 14 | 11, 13 | ax-mp 5 | . 2 ⊢ (ℂ ∖ (-∞(,]0)) ∈ (TopOpen‘ℂfld) |
| 15 | 1, 14 | eqeltri 2857 | 1 ⊢ 𝐷 ∈ (TopOpen‘ℂfld) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 ∖ cdif 3896 ran crn 5652 ‘cfv 6531 (class class class)co 7412 ℂcc 11179 ℝcr 11180 0cc0 11181 -∞cmnf 11322 (,)cioo 13457 (,]cioc 13458 ↾t crest 17571 TopOpenctopn 17572 topGenctg 17588 ℂfldccnfld 21658 Clsdccld 23314 |
| 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 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 ax-pre-sup 11259 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-iin 4954 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8460 df-er 8701 df-map 8833 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-fi 9387 df-sup 9418 df-inf 9419 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-div 11955 df-nn 12317 df-2 12386 df-3 12387 df-4 12388 df-5 12389 df-6 12390 df-7 12391 df-8 12392 df-9 12393 df-n0 12588 df-z 12675 df-dec 12796 df-uz 12947 df-q 13057 df-rp 13102 df-xneg 13222 df-xadd 13223 df-xmul 13224 df-ioo 13461 df-ioc 13462 df-fz 13621 df-seq 14125 df-exp 14185 df-cj 15246 df-re 15247 df-im 15248 df-sqrt 15382 df-abs 15383 df-struct 17305 df-slot 17340 df-ndx 17352 df-base 17368 df-plusg 17421 df-mulr 17422 df-starv 17423 df-tset 17427 df-ple 17428 df-ds 17430 df-unif 17431 df-rest 17573 df-topn 17574 df-topgen 17594 df-psmet 21650 df-xmet 21651 df-met 21652 df-bl 21653 df-mopn 21654 df-cnfld 21659 df-top 23192 df-topon 23209 df-topsp 23231 df-bases 23244 df-cld 23317 df-xms 24619 df-ms 24620 |
| This theorem is used by: dvlog 26961 efopnlem2 26967 atansopn 27242 |
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