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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 23365 | . 2 ⊢ (topGen‘ran (,)) ∈ Top | |
2 | uniretop 23366 | . . 3 ⊢ ℝ = ∪ (topGen‘ran (,)) | |
3 | 2 | topopn 21509 | . 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 2113 ran crn 5549 ‘cfv 6348 ℝcr 10529 (,)cioo 12732 topGenctg 16706 Topctop 21496 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2792 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5323 ax-un 7454 ax-cnex 10586 ax-resscn 10587 ax-pre-lttri 10604 ax-pre-lttrn 10605 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1083 df-3an 1084 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2799 df-cleq 2813 df-clel 2892 df-nfc 2962 df-ne 3016 df-nel 3123 df-ral 3142 df-rex 3143 df-rab 3146 df-v 3493 df-sbc 3769 df-csb 3877 df-dif 3932 df-un 3934 df-in 3936 df-ss 3945 df-nul 4285 df-if 4461 df-pw 4534 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-iun 4914 df-br 5060 df-opab 5122 df-mpt 5140 df-id 5453 df-po 5467 df-so 5468 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-ov 7152 df-oprab 7153 df-mpo 7154 df-1st 7682 df-2nd 7683 df-er 8282 df-en 8503 df-dom 8504 df-sdom 8505 df-pnf 10670 df-mnf 10671 df-xr 10672 df-ltxr 10673 df-le 10674 df-ioo 12736 df-topgen 16712 df-top 21497 df-bases 21549 |
This theorem is referenced by: fperdvper 42277 dirkeritg 42461 etransclem2 42595 etransclem23 42616 etransclem35 42628 etransclem38 42631 etransclem39 42632 etransclem44 42637 etransclem45 42638 etransclem47 42640 |
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