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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 13358 | . 2 ⊢ [,] = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 ≤ 𝑦)}) | |
| 2 | 1 | elixx1 13360 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ* ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 ∧ w3a 1099 ∈ wcel 2144 class class class wbr 5102 (class class class)co 7398 ℝ*cxr 11217 ≤ cle 11219 [,]cicc 13354 |
| 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-pr 5392 ax-un 7720 ax-cnex 11131 ax-resscn 11132 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 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-ral 3079 df-rex 3089 df-rab 3417 df-v 3458 df-sbc 3747 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-br 5103 df-opab 5165 df-id 5544 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-iota 6479 df-fun 6525 df-fv 6531 df-ov 7401 df-oprab 7402 df-mpo 7403 df-xr 11222 df-icc 13358 |
| This theorem is referenced by: iccid 13396 iccleub 13407 iccgelb 13408 elicc2 13417 elicc4 13419 elxrge0 13463 lbicc2 13470 ubicc2 13471 difreicc 13490 cnblcld 24836 ovolf 25546 volivth 25671 itg2ge0 25799 itg2const2 25805 taylfvallem1 26422 tayl0 26427 radcnvcl 26482 radcnvle 26485 psercnlem1 26490 eliccelico 32981 xrdifh 32984 unitssxrge0 34199 esumle 34357 esumlef 34361 esumpinfsum 34376 voliune 34528 volfiniune 34529 ddemeas 34535 prob01 34712 elicc3 36682 ftc1cnnclem 38195 ftc1anc 38205 ftc2nc 38206 dvle2 42694 iocinico 43794 icoiccdif 46105 iblsplit 46545 iblspltprt 46552 itgspltprt 46558 fourierdlem1 46687 iccpartrn 48041 rrxsphere 49375 |
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