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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 5106 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12996 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3656 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ wa 399 ∈ wcel 2144 class class class wbr 5102 ℝcr 11074 0cc0 11075 < clt 11218 ℝ+crp 12995 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-ext 2736 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-sb 2093 df-clab 2743 df-cleq 2756 df-clel 2839 df-rab 3417 df-v 3458 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4288 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5103 df-rp 12996 |
| This theorem is referenced by: elrpii 12998 nnrp 13007 rpgt0 13008 rpregt0 13010 ralrp 13017 rexrp 13018 rpaddcl 13019 rpmulcl 13020 rpdivcl 13022 rpgecl 13025 rphalflt 13026 ge0p1rp 13028 rpneg 13029 negelrp 13030 ltsubrp 13033 ltaddrp 13034 difrp 13035 elrpd 13036 infmrp1 13350 dfrp2 13400 iccdil 13496 icccntr 13498 1mod 13915 expgt0 14110 resqrex 15279 sqrtdiv 15294 sqrtneglem 15295 mulcn2 15625 ef01bndlem 16218 sinltx 16223 met1stc 24583 met2ndci 24584 bcthlem4 25391 itg2mulc 25811 dvferm1 26049 dvne0 26075 reeff1o 26512 ellogdm 26706 cxpge0 26750 cxple2a 26766 cxpcn3lem 26814 cxpaddlelem 26818 cxpaddle 26819 atanbnd 26993 rlimcnp 27032 amgm 27057 chtub 27278 chebbnd1 27538 chto1ub 27542 pntlem3 27675 blocni 31010 rpdp2cl 33061 dp2ltc 33066 dplti 33084 dpgti 33085 dpexpp1 33087 dpmul4 33093 fdvposlt 34895 hgt750lem 34947 unbdqndv2lem2 36953 heiborlem8 38322 dvrelog2 42686 dvrelog3 42687 sqrtcvallem1 44212 wallispilem4 46647 perfectALTVlem2 48349 regt1loggt0 49163 |
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