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Mirrors > Home > MPE Home > Th. List > elrp | Structured version Visualization version GIF version |
Description: Membership in the set of positive reals. (Contributed by NM, 27-Oct-2007.) |
Ref | Expression |
---|---|
elrp | ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq2 5034 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
2 | df-rp 12378 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
3 | 1, 2 | elrab2 3631 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 209 ∧ wa 399 ∈ wcel 2111 class class class wbr 5030 ℝcr 10525 0cc0 10526 < clt 10664 ℝ+crp 12377 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-rab 3115 df-v 3443 df-un 3886 df-sn 4526 df-pr 4528 df-op 4532 df-br 5031 df-rp 12378 |
This theorem is referenced by: elrpii 12380 nnrp 12388 rpgt0 12389 rpregt0 12391 ralrp 12397 rexrp 12398 rpaddcl 12399 rpmulcl 12400 rpdivcl 12402 rpgecl 12405 rphalflt 12406 ge0p1rp 12408 rpneg 12409 negelrp 12410 ltsubrp 12413 ltaddrp 12414 difrp 12415 elrpd 12416 infmrp1 12725 iccdil 12868 icccntr 12870 1mod 13266 expgt0 13458 resqrex 14602 sqrtdiv 14617 sqrtneglem 14618 mulcn2 14944 ef01bndlem 15529 sinltx 15534 met1stc 23128 met2ndci 23129 bcthlem4 23931 itg2mulc 24351 dvferm1 24588 dvne0 24614 reeff1o 25042 ellogdm 25230 cxpge0 25274 cxple2a 25290 cxpcn3lem 25336 cxpaddlelem 25340 cxpaddle 25341 atanbnd 25512 rlimcnp 25551 amgm 25576 chtub 25796 chebbnd1 26056 chto1ub 26060 pntlem3 26193 blocni 28588 dfrp2 30517 rpdp2cl 30584 dp2ltc 30589 dplti 30607 dpgti 30608 dpexpp1 30610 dpmul4 30616 fdvposlt 31980 hgt750lem 32032 unbdqndv2lem2 33962 heiborlem8 35256 2xp3dxp2ge1d 39387 sqrtcvallem1 40331 wallispilem4 42710 perfectALTVlem2 44240 regt1loggt0 44950 |
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