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Mirrors > Home > ILE Home > Th. List > ioopos | Unicode version |
Description: The set of positive reals expressed as an open interval. (Contributed by NM, 7-May-2007.) |
Ref | Expression |
---|---|
ioopos |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0xr 7780 | . . 3 | |
2 | pnfxr 7786 | . . 3 | |
3 | iooval2 9666 | . . 3 | |
4 | 1, 2, 3 | mp2an 422 | . 2 |
5 | ltpnf 9535 | . . . 4 | |
6 | 5 | biantrud 302 | . . 3 |
7 | 6 | rabbiia 2645 | . 2 |
8 | 4, 7 | eqtr4i 2141 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wceq 1316 wcel 1465 crab 2397 class class class wbr 3899 (class class class)co 5742 cr 7587 cc0 7588 cpnf 7765 cxr 7767 clt 7768 cioo 9639 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 588 ax-in2 589 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-13 1476 ax-14 1477 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-sep 4016 ax-pow 4068 ax-pr 4101 ax-un 4325 ax-setind 4422 ax-cnex 7679 ax-resscn 7680 ax-1re 7682 ax-addrcl 7685 ax-rnegex 7697 ax-pre-ltirr 7700 ax-pre-ltwlin 7701 ax-pre-lttrn 7702 |
This theorem depends on definitions: df-bi 116 df-3or 948 df-3an 949 df-tru 1319 df-fal 1322 df-nf 1422 df-sb 1721 df-eu 1980 df-mo 1981 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ne 2286 df-nel 2381 df-ral 2398 df-rex 2399 df-rab 2402 df-v 2662 df-sbc 2883 df-dif 3043 df-un 3045 df-in 3047 df-ss 3054 df-pw 3482 df-sn 3503 df-pr 3504 df-op 3506 df-uni 3707 df-br 3900 df-opab 3960 df-id 4185 df-po 4188 df-iso 4189 df-xp 4515 df-rel 4516 df-cnv 4517 df-co 4518 df-dm 4519 df-iota 5058 df-fun 5095 df-fv 5101 df-ov 5745 df-oprab 5746 df-mpo 5747 df-pnf 7770 df-mnf 7771 df-xr 7772 df-ltxr 7773 df-le 7774 df-ioo 9643 |
This theorem is referenced by: ioorp 9702 repos 9721 |
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