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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 5100 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12904 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3647 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∈ wcel 2113 class class class wbr 5096 ℝcr 11023 0cc0 11024 < clt 11164 ℝ+crp 12903 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-br 5097 df-rp 12904 |
| This theorem is referenced by: elrpii 12906 nnrp 12915 rpgt0 12916 rpregt0 12918 ralrp 12925 rexrp 12926 rpaddcl 12927 rpmulcl 12928 rpdivcl 12930 rpgecl 12933 rphalflt 12934 ge0p1rp 12936 rpneg 12937 negelrp 12938 ltsubrp 12941 ltaddrp 12942 difrp 12943 elrpd 12944 infmrp1 13258 dfrp2 13308 iccdil 13404 icccntr 13406 1mod 13821 expgt0 14016 resqrex 15171 sqrtdiv 15186 sqrtneglem 15187 mulcn2 15517 ef01bndlem 16107 sinltx 16112 met1stc 24463 met2ndci 24464 bcthlem4 25281 itg2mulc 25702 dvferm1 25943 dvne0 25970 reeff1o 26411 ellogdm 26602 cxpge0 26646 cxple2a 26662 cxpcn3lem 26711 cxpaddlelem 26715 cxpaddle 26716 atanbnd 26890 rlimcnp 26929 amgm 26955 chtub 27177 chebbnd1 27437 chto1ub 27441 pntlem3 27574 blocni 30829 rpdp2cl 32912 dp2ltc 32917 dplti 32935 dpgti 32936 dpexpp1 32938 dpmul4 32944 fdvposlt 34705 hgt750lem 34757 unbdqndv2lem2 36653 heiborlem8 37958 dvrelog2 42257 dvrelog3 42258 sqrtcvallem1 43814 wallispilem4 46254 perfectALTVlem2 47910 regt1loggt0 48724 |
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