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| Mirrors > Home > MPE Home > Th. List > Mathboxes > unibrsiga | Structured version Visualization version GIF version | ||
| Description: The union of the Borel Algebra is the set of real numbers. (Contributed by Thierry Arnoux, 21-Jan-2017.) |
| Ref | Expression |
|---|---|
| unibrsiga | ⊢ ∪ 𝔅ℝ = ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | retop 24669 | . . 3 ⊢ (topGen‘ran (,)) ∈ Top | |
| 2 | unisg 34146 | . . 3 ⊢ ((topGen‘ran (,)) ∈ Top → ∪ (sigaGen‘(topGen‘ran (,))) = ∪ (topGen‘ran (,))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ ∪ (sigaGen‘(topGen‘ran (,))) = ∪ (topGen‘ran (,)) |
| 4 | df-brsiga 34185 | . . 3 ⊢ 𝔅ℝ = (sigaGen‘(topGen‘ran (,))) | |
| 5 | 4 | unieqi 4869 | . 2 ⊢ ∪ 𝔅ℝ = ∪ (sigaGen‘(topGen‘ran (,))) |
| 6 | uniretop 24670 | . 2 ⊢ ℝ = ∪ (topGen‘ran (,)) | |
| 7 | 3, 5, 6 | 3eqtr4i 2763 | 1 ⊢ ∪ 𝔅ℝ = ℝ |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∈ wcel 2110 ∪ cuni 4857 ran crn 5615 ‘cfv 6477 ℝcr 10997 (,)cioo 13237 topGenctg 17333 Topctop 22801 sigaGencsigagen 34141 𝔅ℝcbrsiga 34184 |
| 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 2112 ax-9 2120 ax-10 2143 ax-11 2159 ax-12 2179 ax-ext 2702 ax-sep 5232 ax-nul 5242 ax-pow 5301 ax-pr 5368 ax-un 7663 ax-cnex 11054 ax-resscn 11055 ax-pre-lttri 11072 ax-pre-lttrn 11073 |
| 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 2067 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rab 3394 df-v 3436 df-sbc 3740 df-csb 3849 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-nul 4282 df-if 4474 df-pw 4550 df-sn 4575 df-pr 4577 df-op 4581 df-uni 4858 df-int 4896 df-iun 4941 df-br 5090 df-opab 5152 df-mpt 5171 df-id 5509 df-po 5522 df-so 5523 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-iota 6433 df-fun 6479 df-fn 6480 df-f 6481 df-f1 6482 df-fo 6483 df-f1o 6484 df-fv 6485 df-ov 7344 df-oprab 7345 df-mpo 7346 df-1st 7916 df-2nd 7917 df-er 8617 df-en 8865 df-dom 8866 df-sdom 8867 df-pnf 11140 df-mnf 11141 df-xr 11142 df-ltxr 11143 df-le 11144 df-ioo 13241 df-topgen 17339 df-top 22802 df-bases 22854 df-siga 34112 df-sigagen 34142 df-brsiga 34185 |
| This theorem is referenced by: elmbfmvol2 34270 mbfmcnt 34271 br2base 34272 isrrvv 34446 orvcelval 34472 dstrvprob 34475 |
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