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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 5103 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12910 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3650 | 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 5099 ℝcr 11029 0cc0 11030 < clt 11170 ℝ+crp 12909 |
| 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 3401 df-v 3443 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4287 df-if 4481 df-sn 4582 df-pr 4584 df-op 4588 df-br 5100 df-rp 12910 |
| This theorem is referenced by: elrpii 12912 nnrp 12921 rpgt0 12922 rpregt0 12924 ralrp 12931 rexrp 12932 rpaddcl 12933 rpmulcl 12934 rpdivcl 12936 rpgecl 12939 rphalflt 12940 ge0p1rp 12942 rpneg 12943 negelrp 12944 ltsubrp 12947 ltaddrp 12948 difrp 12949 elrpd 12950 infmrp1 13264 dfrp2 13314 iccdil 13410 icccntr 13412 1mod 13827 expgt0 14022 resqrex 15177 sqrtdiv 15192 sqrtneglem 15193 mulcn2 15523 ef01bndlem 16113 sinltx 16118 met1stc 24469 met2ndci 24470 bcthlem4 25287 itg2mulc 25708 dvferm1 25949 dvne0 25976 reeff1o 26417 ellogdm 26608 cxpge0 26652 cxple2a 26668 cxpcn3lem 26717 cxpaddlelem 26721 cxpaddle 26722 atanbnd 26896 rlimcnp 26935 amgm 26961 chtub 27183 chebbnd1 27443 chto1ub 27447 pntlem3 27580 blocni 30884 rpdp2cl 32965 dp2ltc 32970 dplti 32988 dpgti 32989 dpexpp1 32991 dpmul4 32997 fdvposlt 34758 hgt750lem 34810 unbdqndv2lem2 36712 heiborlem8 38021 dvrelog2 42386 dvrelog3 42387 sqrtcvallem1 43939 wallispilem4 46379 perfectALTVlem2 48035 regt1loggt0 48849 |
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