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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 13483 | . 2 ⊢ [,] = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 ≤ 𝑦)}) | |
| 2 | 1 | elixx1 13485 | 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 2144 class class class wbr 5102 (class class class)co 7420 ℝ*cxr 11342 ≤ cle 11344 [,]cicc 13479 |
| 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-pr 5390 ax-un 7751 ax-cnex 11256 ax-resscn 11257 |
| 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-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-opab 5167 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-iota 6494 df-fun 6540 df-fv 6546 df-ov 7423 df-oprab 7424 df-mpo 7425 df-xr 11347 df-icc 13483 |
| This theorem is used by: iccid 13521 iccleub 13532 iccgelb 13533 elicc2 13542 elicc4 13544 elxrge0 13588 lbicc2 13595 ubicc2 13596 difreicc 13615 cnblcld 25093 ovolf 25803 volivth 25928 itg2ge0 26056 itg2const2 26062 taylfvallem1 26684 tayl0 26689 radcnvcl 26744 radcnvle 26747 psercnlem1 26752 eliccelico 33369 xrdifh 33372 unitssxrge0 34532 esumle 34690 esumlef 34694 esumpinfsum 34709 voliune 34862 volfiniune 34863 ddemeas 34869 prob01 35045 elicc3 37105 ftc1cnnclem 38610 ftc1anc 38620 ftc2nc 38621 dvle2 43123 iocinico 44214 icoiccdif 46536 iblsplit 46976 iblspltprt 46983 itgspltprt 46989 fourierdlem1 47118 iccpartrn 48512 rrxsphere 49860 |
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