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| Mirrors > Home > MPE Home > Th. List > elicc1 | Structured version Visualization version GIF version | ||
| Description: Membership in a closed interval of extended reals. (Contributed by NM, 24-Dec-2006.) (Revised by Mario Carneiro, 3-Nov-2013.) |
| Ref | Expression |
|---|---|
| elicc1 | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ* ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-icc 13484 | . 2 ⊢ [,] = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 ≤ 𝑦)}) | |
| 2 | 1 | elixx1 13486 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ* ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 ∈ wcel 2145 class class class wbr 5103 (class class class)co 7421 ℝ*cxr 11343 ≤ cle 11345 [,]cicc 13480 |
| 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 2213 ax-ext 2733 ax-sep 5249 ax-pr 5391 ax-un 7752 ax-cnex 11257 ax-resscn 11258 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-sbc 3740 df-dif 3900 df-un 3902 df-in 3904 df-ss 3915 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-iota 6495 df-fun 6541 df-fv 6547 df-ov 7424 df-oprab 7425 df-mpo 7426 df-xr 11348 df-icc 13484 |
| This theorem is used by: iccid 13522 iccleub 13533 iccgelb 13534 elicc2 13543 elicc4 13545 elxrge0 13589 lbicc2 13596 ubicc2 13597 difreicc 13616 cnblcld 25094 ovolf 25804 volivth 25929 itg2ge0 26057 itg2const2 26063 taylfvallem1 26685 tayl0 26690 radcnvcl 26745 radcnvle 26748 psercnlem1 26753 eliccelico 33370 xrdifh 33373 unitssxrge0 34533 esumle 34691 esumlef 34695 esumpinfsum 34710 voliune 34863 volfiniune 34864 ddemeas 34870 prob01 35046 elicc3 37106 ftc1cnnclem 38611 ftc1anc 38621 ftc2nc 38622 dvle2 43124 iocinico 44215 icoiccdif 46537 iblsplit 46977 iblspltprt 46984 itgspltprt 46990 fourierdlem1 47119 iccpartrn 48513 rrxsphere 49861 |
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