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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 13358 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵))) | |
| 4 | 1, 2, 3 | mp2an 693 | 1 ⊢ (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ w3a 1087 ∈ wcel 2114 class class class wbr 5086 (class class class)co 7361 ℝcr 11031 ≤ cle 11174 [,]cicc 13295 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-resscn 11089 ax-pre-lttri 11106 ax-pre-lttrn 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5520 df-po 5533 df-so 5534 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-ov 7364 df-oprab 7365 df-mpo 7366 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11175 df-mnf 11176 df-xr 11177 df-ltxr 11178 df-le 11179 df-icc 13299 |
| This theorem is referenced by: elicc01 13413 sinbnd2 16143 cosbnd2 16144 iihalf1 24911 iihalf2 24913 elii1 24915 elii2 24916 xrhmeo 24926 oprpiece1res2 24932 pco0 24994 pcoval2 24996 pcoass 25004 vitalilem2 25589 vitali 25593 coseq00topi 26482 coseq0negpitopi 26483 sinq12ge0 26488 cosq14ge0 26491 cosordlem 26510 cosord 26511 cos11 26513 sinord 26514 recosf1o 26515 resinf1o 26516 efif1olem3 26524 argregt0 26590 argrege0 26591 argimgt0 26592 logimul 26594 cxpsqrtlem 26682 acosbnd 26880 log2ub 26929 emcllem7 26982 emgt0 26987 harmonicbnd3 26988 harmoniclbnd 26989 harmonicubnd 26990 harmonicbnd4 26991 logdivbnd 27536 pntpbnd2 27567 sin2h 37948 cos2h 37949 asin1half 42806 lhe4.4ex1a 44777 fourierdlem40 46596 fourierdlem62 46617 fourierdlem78 46633 fourierdlem111 46666 sqwvfoura 46677 sqwvfourb 46678 |
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