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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 13577 | . . . 4 ⊢ (-∞(,)+∞) = ℝ | |
| 2 | ioof 13602 | . . . . . 6 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ | |
| 3 | ffn 6728 | . . . . . 6 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → (,) Fn (ℝ* × ℝ*)) | |
| 4 | 2, 3 | ax-mp 5 | . . . . 5 ⊢ (,) Fn (ℝ* × ℝ*) |
| 5 | mnfxr 11390 | . . . . 5 ⊢ -∞ ∈ ℝ* | |
| 6 | pnfxr 11387 | . . . . 5 ⊢ +∞ ∈ ℝ* | |
| 7 | fnovrn 7617 | . . . . 5 ⊢ (((,) Fn (ℝ* × ℝ*) ∧ -∞ ∈ ℝ* ∧ +∞ ∈ ℝ*) → (-∞(,)+∞) ∈ ran (,)) | |
| 8 | 4, 5, 6, 7 | mp3an 1491 | . . . 4 ⊢ (-∞(,)+∞) ∈ ran (,) |
| 9 | 1, 8 | eqeltrri 2861 | . . 3 ⊢ ℝ ∈ ran (,) |
| 10 | elssuni 4902 | . . 3 ⊢ (ℝ ∈ ran (,) → ℝ ⊆ ∪ ran (,)) | |
| 11 | 9, 10 | ax-mp 5 | . 2 ⊢ ℝ ⊆ ∪ ran (,) |
| 12 | frn 6736 | . . . 4 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → ran (,) ⊆ 𝒫 ℝ) | |
| 13 | 2, 12 | ax-mp 5 | . . 3 ⊢ ran (,) ⊆ 𝒫 ℝ |
| 14 | sspwuni 5063 | . . 3 ⊢ (ran (,) ⊆ 𝒫 ℝ ↔ ∪ ran (,) ⊆ ℝ) | |
| 15 | 13, 14 | mpbi 233 | . 2 ⊢ ∪ ran (,) ⊆ ℝ |
| 16 | 11, 15 | eqssi 3929 | 1 ⊢ ℝ = ∪ ran (,) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2147 ⊆ wss 3900 𝒫 cpw 4560 ∪ cuni 4870 × cxp 5653 ran crn 5656 Fn wfn 6550 ⟶wf 6551 (class class class)co 7440 ℝcr 11223 +∞cpnf 11364 -∞cmnf 11365 ℝ*cxr 11366 (,)cioo 13500 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-cnex 11280 ax-resscn 11281 ax-pre-lttri 11298 ax-pre-lttrn 11299 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-ov 7443 df-oprab 7444 df-mpo 7445 df-1st 8022 df-2nd 8023 df-er 8742 df-en 8999 df-dom 9000 df-sdom 9001 df-pnf 11369 df-mnf 11370 df-xr 11371 df-ltxr 11372 df-le 11373 df-ioo 13504 |
| This theorem is used by: pnfnei 23565 mnfnei 23566 uniretop 25108 tgioo 25142 xrtgioo 25153 bndth 25306 relowlssretop 38477 relowlpssretop 38478 mblfinlem3 38768 mblfinlem4 38769 ismblfin 38770 |
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