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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 10335 |
. . 3
| |
| 2 | 1 | eleq2d 2308 |
. 2
|
| 3 | breq2 4135 |
. . . . 5
| |
| 4 | breq1 4134 |
. . . . 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 |
| This proof depends on syntax axioms:
|
| This proof depends on 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 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8277 ax-resscn 8278 ax-pre-ltirr 8298 ax-pre-ltwlin 8299 ax-pre-lttrn 8300 |
| This proof 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 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-id 4440 df-po 4443 df-iso 4444 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-ov 6091 df-oprab 6092 df-mpo 6093 df-pnf 8369 df-mnf 8370 df-xr 8371 df-ltxr 8372 df-le 8373 df-ioo 10312 |
| This theorem is used by: eliooord 10348 elioopnf 10387 elioomnf 10388 dfrp2 10716 bl2ioo 15788 dedekindicc 15871 reeff1oleme 16010 reeff1o 16011 sin0pilem2 16021 pilem3 16022 sincosq1sgn 16065 sincosq2sgn 16066 sincosq3sgn 16067 sincosq4sgn 16068 sinq12gt0 16069 cosq14gt0 16071 cosq23lt0 16072 coseq0q4123 16073 coseq00topi 16074 coseq0negpitopi 16075 sincos6thpi 16081 cosordlem 16089 cos02pilt1 16091 cos0pilt1 16092 ioocosf1o 16094 iooref1o 17301 taupi 17342 |
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