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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 5079 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12938 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3634 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ wa 397 ∈ wcel 2121 class class class wbr 5075 ℝcr 11032 0cc0 11033 < clt 11174 ℝ+crp 12937 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-rab 3394 df-v 3435 df-dif 3888 df-un 3890 df-ss 3902 df-nul 4265 df-if 4458 df-sn 4559 df-pr 4561 df-op 4565 df-br 5076 df-rp 12938 |
| This theorem is referenced by: elrpii 12940 nnrp 12949 rpgt0 12950 rpregt0 12952 ralrp 12959 rexrp 12960 rpaddcl 12961 rpmulcl 12962 rpdivcl 12964 rpgecl 12967 rphalflt 12968 ge0p1rp 12970 rpneg 12971 negelrp 12972 ltsubrp 12975 ltaddrp 12976 difrp 12977 elrpd 12978 infmrp1 13292 dfrp2 13342 iccdil 13438 icccntr 13440 1mod 13857 expgt0 14052 resqrex 15207 sqrtdiv 15222 sqrtneglem 15223 mulcn2 15553 ef01bndlem 16146 sinltx 16151 met1stc 24508 met2ndci 24509 bcthlem4 25316 itg2mulc 25736 dvferm1 25974 dvne0 26000 reeff1o 26434 ellogdm 26625 cxpge0 26669 cxple2a 26685 cxpcn3lem 26733 cxpaddlelem 26737 cxpaddle 26738 atanbnd 26912 rlimcnp 26951 amgm 26976 chtub 27197 chebbnd1 27457 chto1ub 27461 pntlem3 27594 blocni 30898 rpdp2cl 32964 dp2ltc 32969 dplti 32987 dpgti 32988 dpexpp1 32990 dpmul4 32996 fdvposlt 34795 hgt750lem 34847 unbdqndv2lem2 36831 heiborlem8 38200 dvrelog2 42564 dvrelog3 42565 sqrtcvallem1 44090 wallispilem4 46525 perfectALTVlem2 48227 regt1loggt0 49041 |
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