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Mirrors > Home > MPE Home > Th. List > Mathboxes > reopn | Structured version Visualization version GIF version |
Description: The reals are open with respect to the standard topology. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
Ref | Expression |
---|---|
reopn | ⊢ ℝ ∈ (topGen‘ran (,)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | retop 23369 | . 2 ⊢ (topGen‘ran (,)) ∈ Top | |
2 | uniretop 23370 | . . 3 ⊢ ℝ = ∪ (topGen‘ran (,)) | |
3 | 2 | topopn 21513 | . 2 ⊢ ((topGen‘ran (,)) ∈ Top → ℝ ∈ (topGen‘ran (,))) |
4 | 1, 3 | ax-mp 5 | 1 ⊢ ℝ ∈ (topGen‘ran (,)) |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2110 ran crn 5555 ‘cfv 6354 ℝcr 10535 (,)cioo 12737 topGenctg 16710 Topctop 21500 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-cnex 10592 ax-resscn 10593 ax-pre-lttri 10610 ax-pre-lttrn 10611 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-id 5459 df-po 5473 df-so 5474 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-ov 7158 df-oprab 7159 df-mpo 7160 df-1st 7688 df-2nd 7689 df-er 8288 df-en 8509 df-dom 8510 df-sdom 8511 df-pnf 10676 df-mnf 10677 df-xr 10678 df-ltxr 10679 df-le 10680 df-ioo 12741 df-topgen 16716 df-top 21501 df-bases 21553 |
This theorem is referenced by: fperdvper 42201 dirkeritg 42386 etransclem2 42520 etransclem23 42541 etransclem35 42553 etransclem38 42556 etransclem39 42557 etransclem44 42562 etransclem45 42563 etransclem47 42565 |
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