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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 13475 | . . . 4 ⊢ (-∞(,)+∞) = ℝ | |
| 2 | ioof 13500 | . . . . . 6 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ | |
| 3 | ffn 6706 | . . . . . 6 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → (,) Fn (ℝ* × ℝ*)) | |
| 4 | 2, 3 | ax-mp 5 | . . . . 5 ⊢ (,) Fn (ℝ* × ℝ*) |
| 5 | mnfxr 11291 | . . . . 5 ⊢ -∞ ∈ ℝ* | |
| 6 | pnfxr 11288 | . . . . 5 ⊢ +∞ ∈ ℝ* | |
| 7 | fnovrn 7592 | . . . . 5 ⊢ (((,) Fn (ℝ* × ℝ*) ∧ -∞ ∈ ℝ* ∧ +∞ ∈ ℝ*) → (-∞(,)+∞) ∈ ran (,)) | |
| 8 | 4, 5, 6, 7 | mp3an 1490 | . . . 4 ⊢ (-∞(,)+∞) ∈ ran (,) |
| 9 | 1, 8 | eqeltrri 2859 | . . 3 ⊢ ℝ ∈ ran (,) |
| 10 | elssuni 4902 | . . 3 ⊢ (ℝ ∈ ran (,) → ℝ ⊆ ∪ ran (,)) | |
| 11 | 9, 10 | ax-mp 5 | . 2 ⊢ ℝ ⊆ ∪ ran (,) |
| 12 | frn 6714 | . . . 4 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → ran (,) ⊆ 𝒫 ℝ) | |
| 13 | 2, 12 | ax-mp 5 | . . 3 ⊢ ran (,) ⊆ 𝒫 ℝ |
| 14 | sspwuni 5064 | . . 3 ⊢ (ran (,) ⊆ 𝒫 ℝ ↔ ∪ ran (,) ⊆ ℝ) | |
| 15 | 13, 14 | mpbi 233 | . 2 ⊢ ∪ ran (,) ⊆ ℝ |
| 16 | 11, 15 | eqssi 3950 | 1 ⊢ ℝ = ∪ ran (,) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 ⊆ wss 3902 𝒫 cpw 4560 ∪ cuni 4870 × cxp 5657 ran crn 5660 Fn wfn 6532 ⟶wf 6533 (class class class)co 7416 ℝcr 11124 +∞cpnf 11265 -∞cmnf 11266 ℝ*cxr 11267 (,)cioo 13398 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-cnex 11181 ax-resscn 11182 ax-pre-lttri 11199 ax-pre-lttrn 11200 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-po 5567 df-so 5568 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7419 df-oprab 7420 df-mpo 7421 df-1st 7989 df-2nd 7990 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11270 df-mnf 11271 df-xr 11272 df-ltxr 11273 df-le 11274 df-ioo 13402 |
| This theorem is used by: pnfnei 23444 mnfnei 23445 uniretop 24987 tgioo 25021 xrtgioo 25032 bndth 25185 relowlssretop 38102 relowlpssretop 38103 mblfinlem3 38393 mblfinlem4 38394 ismblfin 38395 |
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