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| Mirrors > Home > MPE Home > Th. List > elicc2i | Structured version Visualization version GIF version | ||
| Description: Inference for membership in a closed interval. (Contributed by Scott Fenton, 3-Jun-2013.) |
| Ref | Expression |
|---|---|
| elicc2i.1 | ⊢ 𝐴 ∈ ℝ |
| elicc2i.2 | ⊢ 𝐵 ∈ ℝ |
| Ref | Expression |
|---|---|
| elicc2i | ⊢ (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elicc2i.1 | . 2 ⊢ 𝐴 ∈ ℝ | |
| 2 | elicc2i.2 | . 2 ⊢ 𝐵 ∈ ℝ | |
| 3 | elicc2 13437 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵))) | |
| 4 | 1, 2, 3 | mp2an 704 | 1 ⊢ (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 209 ∧ w3a 1101 ∈ wcel 2149 class class class wbr 5113 (class class class)co 7411 ℝcr 11098 ≤ cle 11243 [,]cicc 13374 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11155 ax-resscn 11156 ax-pre-lttri 11173 ax-pre-lttrn 11174 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-po 5570 df-so 5571 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7414 df-oprab 7415 df-mpo 7416 df-er 8693 df-en 8943 df-dom 8944 df-sdom 8945 df-pnf 11244 df-mnf 11245 df-xr 11246 df-ltxr 11247 df-le 11248 df-icc 13378 |
| This theorem is referenced by: elicc01 13492 sinbnd2 16237 cosbnd2 16238 iihalf1 25058 iihalf2 25060 elii1 25062 elii2 25063 xrhmeo 25073 oprpiece1res2 25079 pco0 25141 pcoval2 25143 pcoass 25151 vitalilem2 25736 vitali 25740 coseq00topi 26632 coseq0negpitopi 26633 sinq12ge0 26638 cosq14ge0 26641 cosordlem 26660 cosord 26661 cos11 26663 sinord 26664 recosf1o 26665 resinf1o 26666 efif1olem3 26674 argregt0 26740 argrege0 26741 argimgt0 26742 logimul 26744 cxpsqrtlem 26832 acosbnd 27030 log2ub 27079 emcllem7 27131 emgt0 27136 harmonicbnd3 27137 harmoniclbnd 27138 harmonicubnd 27139 harmonicbnd4 27140 logdivbnd 27685 pntpbnd2 27716 sin2h 38148 cos2h 38149 asin1half 43007 lhe4.4ex1a 44930 fourierdlem40 46752 fourierdlem62 46773 fourierdlem78 46789 fourierdlem111 46822 sqwvfoura 46833 sqwvfourb 46834 |
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