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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 4587 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
2 | df-rp 11709 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
3 | 1, 2 | elrab2 3333 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 195 ∧ wa 383 ∈ wcel 1977 class class class wbr 4583 ℝcr 9814 0cc0 9815 < clt 9953 ℝ+crp 11708 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-br 4584 df-rp 11709 |
This theorem is referenced by: elrpii 11711 nnrp 11718 rpgt0 11720 rpregt0 11722 ralrp 11728 rexrp 11729 rpaddcl 11730 rpmulcl 11731 rpdivcl 11732 rpgecl 11735 rphalflt 11736 ge0p1rp 11738 rpneg 11739 negelrp 11740 ltsubrp 11742 ltaddrp 11743 difrp 11744 elrpd 11745 infmrp1 12045 iccdil 12181 icccntr 12183 1mod 12564 expgt0 12755 resqrex 13839 sqrtdiv 13854 sqrtneglem 13855 mulcn2 14174 ef01bndlem 14753 sinltx 14758 met1stc 22136 met2ndci 22137 bcthlem4 22932 itg2mulc 23320 dvferm1 23552 dvne0 23578 reeff1o 24005 ellogdm 24185 cxpge0 24229 cxple2a 24245 cxpcn3lem 24288 cxpaddlelem 24292 cxpaddle 24293 atanbnd 24453 rlimcnp 24492 amgm 24517 chtub 24737 chebbnd1 24961 chto1ub 24965 pntlem3 25098 blocni 27044 dfrp2 28922 unbdqndv2lem2 31671 heiborlem8 32787 wallispilem4 38961 perfectALTVlem2 40165 regt1loggt0 42128 |
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