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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 13428 | . . . 4 ⊢ (-∞(,)+∞) = ℝ | |
| 2 | ioof 13453 | . . . . . 6 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ | |
| 3 | ffn 6693 | . . . . . 6 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → (,) Fn (ℝ* × ℝ*)) | |
| 4 | 2, 3 | ax-mp 5 | . . . . 5 ⊢ (,) Fn (ℝ* × ℝ*) |
| 5 | mnfxr 11241 | . . . . 5 ⊢ -∞ ∈ ℝ* | |
| 6 | pnfxr 11238 | . . . . 5 ⊢ +∞ ∈ ℝ* | |
| 7 | fnovrn 7573 | . . . . 5 ⊢ (((,) Fn (ℝ* × ℝ*) ∧ -∞ ∈ ℝ* ∧ +∞ ∈ ℝ*) → (-∞(,)+∞) ∈ ran (,)) | |
| 8 | 4, 5, 6, 7 | mp3an 1484 | . . . 4 ⊢ (-∞(,)+∞) ∈ ran (,) |
| 9 | 1, 8 | eqeltrri 2861 | . . 3 ⊢ ℝ ∈ ran (,) |
| 10 | elssuni 4899 | . . 3 ⊢ (ℝ ∈ ran (,) → ℝ ⊆ ∪ ran (,)) | |
| 11 | 9, 10 | ax-mp 5 | . 2 ⊢ ℝ ⊆ ∪ ran (,) |
| 12 | frn 6701 | . . . 4 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → ran (,) ⊆ 𝒫 ℝ) | |
| 13 | 2, 12 | ax-mp 5 | . . 3 ⊢ ran (,) ⊆ 𝒫 ℝ |
| 14 | sspwuni 5059 | . . 3 ⊢ (ran (,) ⊆ 𝒫 ℝ ↔ ∪ ran (,) ⊆ ℝ) | |
| 15 | 13, 14 | mpbi 232 | . 2 ⊢ ∪ ran (,) ⊆ ℝ |
| 16 | 11, 15 | eqssi 3954 | 1 ⊢ ℝ = ∪ ran (,) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1562 ∈ wcel 2144 ⊆ wss 3906 𝒫 cpw 4557 ∪ cuni 4867 × cxp 5647 ran crn 5650 Fn wfn 6518 ⟶wf 6519 (class class class)co 7398 ℝcr 11074 +∞cpnf 11215 -∞cmnf 11216 ℝ*cxr 11217 (,)cioo 13351 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 ax-cnex 11131 ax-resscn 11132 ax-pre-lttri 11149 ax-pre-lttrn 11150 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3064 df-ral 3079 df-rex 3089 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-id 5544 df-po 5557 df-so 5558 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-ov 7401 df-oprab 7402 df-mpo 7403 df-1st 7972 df-2nd 7973 df-er 8680 df-en 8930 df-dom 8931 df-sdom 8932 df-pnf 11220 df-mnf 11221 df-xr 11222 df-ltxr 11223 df-le 11224 df-ioo 13355 |
| This theorem is referenced by: pnfnei 23282 mnfnei 23283 uniretop 24824 tgioo 24858 xrtgioo 24869 bndth 25022 relowlssretop 37862 relowlpssretop 37863 mblfinlem3 38163 mblfinlem4 38164 ismblfin 38165 |
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