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| Mirrors > Home > MPE Home > Th. List > iccf | Structured version Visualization version GIF version | ||
| Description: The set of closed intervals of extended reals maps to subsets of extended reals. (Contributed by FL, 14-Jun-2007.) (Revised by Mario Carneiro, 3-Nov-2013.) |
| Ref | Expression |
|---|---|
| iccf | ⊢ [,]:(ℝ* × ℝ*)⟶𝒫 ℝ* |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-icc 13490 | . 2 ⊢ [,] = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 ≤ 𝑦)}) | |
| 2 | 1 | ixxf 13493 | 1 ⊢ [,]:(ℝ* × ℝ*)⟶𝒫 ℝ* |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: 𝒫 cpw 4556 × cxp 5649 ⟶wf 6539 ℝ*cxr 11349 ≤ cle 11351 [,]cicc 13486 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-fv 6551 df-oprab 7428 df-mpo 7429 df-1st 8005 df-2nd 8006 df-xr 11354 df-icc 13490 |
| This theorem is used by: lecldbas 23546 ovolficc 25798 ovolficcss 25799 uniiccdif 25908 uniiccvol 25910 dyadmbllem 25929 dyadmbl 25930 opnmbllem 25931 opnmbllem0 38711 mblfinlem1 38712 mblfinlem2 38713 |
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