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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 5089 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12943 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3637 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∈ wcel 2114 class class class wbr 5085 ℝcr 11037 0cc0 11038 < clt 11179 ℝ+crp 12942 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-br 5086 df-rp 12943 |
| This theorem is referenced by: elrpii 12945 nnrp 12954 rpgt0 12955 rpregt0 12957 ralrp 12964 rexrp 12965 rpaddcl 12966 rpmulcl 12967 rpdivcl 12969 rpgecl 12972 rphalflt 12973 ge0p1rp 12975 rpneg 12976 negelrp 12977 ltsubrp 12980 ltaddrp 12981 difrp 12982 elrpd 12983 infmrp1 13297 dfrp2 13347 iccdil 13443 icccntr 13445 1mod 13862 expgt0 14057 resqrex 15212 sqrtdiv 15227 sqrtneglem 15228 mulcn2 15558 ef01bndlem 16151 sinltx 16156 met1stc 24486 met2ndci 24487 bcthlem4 25294 itg2mulc 25714 dvferm1 25952 dvne0 25978 reeff1o 26412 ellogdm 26603 cxpge0 26647 cxple2a 26663 cxpcn3lem 26711 cxpaddlelem 26715 cxpaddle 26716 atanbnd 26890 rlimcnp 26929 amgm 26954 chtub 27175 chebbnd1 27435 chto1ub 27439 pntlem3 27572 blocni 30876 rpdp2cl 32941 dp2ltc 32946 dplti 32964 dpgti 32965 dpexpp1 32967 dpmul4 32973 fdvposlt 34743 hgt750lem 34795 unbdqndv2lem2 36770 heiborlem8 38139 dvrelog2 42503 dvrelog3 42504 sqrtcvallem1 44058 wallispilem4 46496 perfectALTVlem2 48198 regt1loggt0 49012 |
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