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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 13359 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵))) | |
| 4 | 1, 2, 3 | mp2an 699 | 1 ⊢ (𝐶 ∈ (𝐴[,]𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 ≤ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ w3a 1093 ∈ wcel 2121 class class class wbr 5075 (class class class)co 7360 ℝcr 11032 ≤ cle 11175 [,]cicc 13296 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5221 ax-nul 5231 ax-pow 5297 ax-pr 5365 ax-un 7682 ax-cnex 11089 ax-resscn 11090 ax-pre-lttri 11107 ax-pre-lttrn 11108 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rab 3394 df-v 3435 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-br 5076 df-opab 5138 df-mpt 5157 df-id 5516 df-po 5529 df-so 5530 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-ov 7363 df-oprab 7364 df-mpo 7365 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-icc 13300 |
| This theorem is referenced by: elicc01 13414 sinbnd2 16144 cosbnd2 16145 iihalf1 24920 iihalf2 24922 elii1 24924 elii2 24925 xrhmeo 24935 oprpiece1res2 24941 pco0 25003 pcoval2 25005 pcoass 25013 vitalilem2 25598 vitali 25602 coseq00topi 26488 coseq0negpitopi 26489 sinq12ge0 26494 cosq14ge0 26497 cosordlem 26516 cosord 26517 cos11 26519 sinord 26520 recosf1o 26521 resinf1o 26522 efif1olem3 26530 argregt0 26596 argrege0 26597 argimgt0 26598 logimul 26600 cxpsqrtlem 26688 acosbnd 26886 log2ub 26935 emcllem7 26987 emgt0 26992 harmonicbnd3 26993 harmoniclbnd 26994 harmonicubnd 26995 harmonicbnd4 26996 logdivbnd 27541 pntpbnd2 27572 sin2h 37992 cos2h 37993 asin1half 42849 lhe4.4ex1a 44788 fourierdlem40 46604 fourierdlem62 46625 fourierdlem78 46641 fourierdlem111 46674 sqwvfoura 46685 sqwvfourb 46686 |
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