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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 5115 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 13017 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3661 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 209 ∧ wa 400 ∈ wcel 2149 class class class wbr 5111 ℝcr 11099 0cc0 11100 < clt 11243 ℝ+crp 13016 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rab 3423 df-v 3463 df-dif 3914 df-un 3916 df-ss 3928 df-nul 4293 df-if 4491 df-sn 4593 df-pr 4595 df-op 4599 df-br 5112 df-rp 13017 |
| This theorem is referenced by: elrpii 13019 nnrp 13028 rpgt0 13029 rpregt0 13031 ralrp 13038 rexrp 13039 rpaddcl 13040 rpmulcl 13041 rpdivcl 13043 rpgecl 13046 rphalflt 13047 ge0p1rp 13049 rpneg 13050 negelrp 13051 ltsubrp 13054 ltaddrp 13055 difrp 13056 elrpd 13057 infmrp1 13371 dfrp2 13421 iccdil 13517 icccntr 13519 1mod 13936 expgt0 14131 resqrex 15301 sqrtdiv 15316 sqrtneglem 15317 mulcn2 15647 ef01bndlem 16240 sinltx 16245 met1stc 24647 met2ndci 24648 bcthlem4 25455 itg2mulc 25875 dvferm1 26113 dvne0 26139 reeff1o 26576 ellogdm 26770 cxpge0 26814 cxple2a 26830 cxpcn3lem 26878 cxpaddlelem 26882 cxpaddle 26883 atanbnd 27057 rlimcnp 27096 amgm 27121 chtub 27342 chebbnd1 27602 chto1ub 27606 pntlem3 27739 blocni 31098 rpdp2cl 33142 dp2ltc 33147 dplti 33165 dpgti 33166 dpexpp1 33168 dpmul4 33174 fdvposlt 34931 hgt750lem 34983 unbdqndv2lem2 37022 heiborlem8 38392 dvrelog2 42756 dvrelog3 42757 sqrtcvallem1 44284 wallispilem4 46709 perfectALTVlem2 48411 regt1loggt0 49236 |
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