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| Mirrors > Home > ILE Home > Th. List > elioo2 | Unicode version | ||
| Description: Membership in an open interval of extended reals. (Contributed by NM, 6-Feb-2007.) |
| Ref | Expression |
|---|---|
| elioo2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iooval2 10300 |
. . 3
| |
| 2 | 1 | eleq2d 2308 |
. 2
|
| 3 | breq2 4132 |
. . . . 5
| |
| 4 | breq1 4131 |
. . . . 5
| |
| 5 | 3, 4 | anbi12d 477 |
. . . 4
|
| 6 | 5 | elrab 2982 |
. . 3
|
| 7 | 3anass 1013 |
. . 3
| |
| 8 | 6, 7 | bitr4i 187 |
. 2
|
| 9 | 2, 8 | bitrdi 196 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-setind 4682 ax-cnex 8264 ax-resscn 8265 ax-pre-ltirr 8285 ax-pre-ltwlin 8286 ax-pre-lttrn 8287 |
| This theorem depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-id 4436 df-po 4439 df-iso 4440 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-iota 5335 df-fun 5377 df-fv 5383 df-ov 6082 df-oprab 6083 df-mpo 6084 df-pnf 8356 df-mnf 8357 df-xr 8358 df-ltxr 8359 df-le 8360 df-ioo 10277 |
| This theorem is referenced by: eliooord 10313 elioopnf 10352 elioomnf 10353 dfrp2 10681 bl2ioo 15634 dedekindicc 15717 reeff1oleme 15856 reeff1o 15857 sin0pilem2 15866 pilem3 15867 sincosq1sgn 15910 sincosq2sgn 15911 sincosq3sgn 15912 sincosq4sgn 15913 sinq12gt0 15914 cosq14gt0 15916 cosq23lt0 15917 coseq0q4123 15918 coseq00topi 15919 coseq0negpitopi 15920 sincos6thpi 15926 cosordlem 15933 cos02pilt1 15935 cos0pilt1 15936 ioocosf1o 15938 iooref1o 17057 taupi 17097 |
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