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| Mirrors > Home > MPE Home > Th. List > unirnioo | Structured version Visualization version GIF version | ||
| Description: The union of the range of the open interval function. (Contributed by NM, 7-May-2007.) (Revised by Mario Carneiro, 30-Jan-2014.) |
| Ref | Expression |
|---|---|
| unirnioo | ⊢ ℝ = ∪ ran (,) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ioomax 13451 | . . . 4 ⊢ (-∞(,)+∞) = ℝ | |
| 2 | ioof 13476 | . . . . . 6 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ | |
| 3 | ffn 6708 | . . . . . 6 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → (,) Fn (ℝ* × ℝ*)) | |
| 4 | 2, 3 | ax-mp 5 | . . . . 5 ⊢ (,) Fn (ℝ* × ℝ*) |
| 5 | mnfxr 11268 | . . . . 5 ⊢ -∞ ∈ ℝ* | |
| 6 | pnfxr 11265 | . . . . 5 ⊢ +∞ ∈ ℝ* | |
| 7 | fnovrn 7588 | . . . . 5 ⊢ (((,) Fn (ℝ* × ℝ*) ∧ -∞ ∈ ℝ* ∧ +∞ ∈ ℝ*) → (-∞(,)+∞) ∈ ran (,)) | |
| 8 | 4, 5, 6, 7 | mp3an 1487 | . . . 4 ⊢ (-∞(,)+∞) ∈ ran (,) |
| 9 | 1, 8 | eqeltrri 2866 | . . 3 ⊢ ℝ ∈ ran (,) |
| 10 | elssuni 4908 | . . 3 ⊢ (ℝ ∈ ran (,) → ℝ ⊆ ∪ ran (,)) | |
| 11 | 9, 10 | ax-mp 5 | . 2 ⊢ ℝ ⊆ ∪ ran (,) |
| 12 | frn 6716 | . . . 4 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → ran (,) ⊆ 𝒫 ℝ) | |
| 13 | 2, 12 | ax-mp 5 | . . 3 ⊢ ran (,) ⊆ 𝒫 ℝ |
| 14 | sspwuni 5070 | . . 3 ⊢ (ran (,) ⊆ 𝒫 ℝ ↔ ∪ ran (,) ⊆ ℝ) | |
| 15 | 13, 14 | mpbi 233 | . 2 ⊢ ∪ ran (,) ⊆ ℝ |
| 16 | 11, 15 | eqssi 3961 | 1 ⊢ ℝ = ∪ ran (,) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 ∈ wcel 2149 ⊆ wss 3913 𝒫 cpw 4567 ∪ cuni 4876 × cxp 5662 ran crn 5665 Fn wfn 6534 ⟶wf 6535 (class class class)co 7413 ℝcr 11101 +∞cpnf 11242 -∞cmnf 11243 ℝ*cxr 11244 (,)cioo 13374 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5273 ax-pow 5339 ax-pr 5407 ax-un 7735 ax-cnex 11158 ax-resscn 11159 ax-pre-lttri 11176 ax-pre-lttrn 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5559 df-po 5572 df-so 5573 df-xp 5670 df-rel 5671 df-cnv 5672 df-co 5673 df-dm 5674 df-rn 5675 df-res 5676 df-ima 5677 df-iota 6495 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-ov 7416 df-oprab 7417 df-mpo 7418 df-1st 7988 df-2nd 7989 df-er 8696 df-en 8946 df-dom 8947 df-sdom 8948 df-pnf 11247 df-mnf 11248 df-xr 11249 df-ltxr 11250 df-le 11251 df-ioo 13378 |
| This theorem is referenced by: pnfnei 23348 mnfnei 23349 uniretop 24890 tgioo 24924 xrtgioo 24935 bndth 25088 relowlssretop 37934 relowlpssretop 37935 mblfinlem3 38235 mblfinlem4 38236 ismblfin 38237 |
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