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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 13507 | . 2 ⊢ [,] = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 ≤ 𝑦)}) | |
| 2 | 1 | elixx1 13509 | 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 2147 class class class wbr 5106 (class class class)co 7440 ℝ*cxr 11366 ≤ cle 11368 [,]cicc 13503 |
| 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-pr 5395 ax-un 7772 ax-cnex 11280 ax-resscn 11281 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 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-br 5107 df-opab 5171 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-iota 6509 df-fun 6557 df-fv 6563 df-ov 7443 df-oprab 7444 df-mpo 7445 df-xr 11371 df-icc 13507 |
| This theorem is used by: iccid 13545 iccleub 13556 iccgelb 13557 elicc2 13566 elicc4 13568 elxrge0 13612 lbicc2 13619 ubicc2 13620 difreicc 13639 cnblcld 25120 ovolf 25830 volivth 25955 itg2ge0 26083 itg2const2 26089 taylfvallem1 26711 tayl0 26716 radcnvcl 26771 radcnvle 26774 psercnlem1 26779 eliccelico 33436 xrdifh 33439 unitssxrge0 34599 esumle 34757 esumlef 34761 esumpinfsum 34776 voliune 34929 volfiniune 34930 ddemeas 34936 prob01 35112 elicc3 37282 ftc1cnnclem 38800 ftc1anc 38810 ftc2nc 38811 dvle2 43313 iocinico 44404 icoiccdif 46739 iblsplit 47179 iblspltprt 47186 itgspltprt 47192 fourierdlem1 47321 iccpartrn 48715 rrxsphere 50063 |
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