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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 5090 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12938 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3638 | 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 5086 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 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| 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 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 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 24500 met2ndci 24501 bcthlem4 25308 itg2mulc 25728 dvferm1 25966 dvne0 25992 reeff1o 26429 ellogdm 26620 cxpge0 26664 cxple2a 26680 cxpcn3lem 26728 cxpaddlelem 26732 cxpaddle 26733 atanbnd 26907 rlimcnp 26946 amgm 26972 chtub 27193 chebbnd1 27453 chto1ub 27457 pntlem3 27590 blocni 30895 rpdp2cl 32960 dp2ltc 32965 dplti 32983 dpgti 32984 dpexpp1 32986 dpmul4 32992 fdvposlt 34763 hgt750lem 34815 unbdqndv2lem2 36790 heiborlem8 38157 dvrelog2 42521 dvrelog3 42522 sqrtcvallem1 44080 wallispilem4 46518 perfectALTVlem2 48214 regt1loggt0 49028 |
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