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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 5104 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
| 2 | df-rp 12920 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
| 3 | 1, 2 | elrab2 3651 | 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 5100 ℝcr 11039 0cc0 11040 < clt 11180 ℝ+crp 12919 |
| 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 3402 df-v 3444 df-dif 3906 df-un 3908 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-br 5101 df-rp 12920 |
| This theorem is referenced by: elrpii 12922 nnrp 12931 rpgt0 12932 rpregt0 12934 ralrp 12941 rexrp 12942 rpaddcl 12943 rpmulcl 12944 rpdivcl 12946 rpgecl 12949 rphalflt 12950 ge0p1rp 12952 rpneg 12953 negelrp 12954 ltsubrp 12957 ltaddrp 12958 difrp 12959 elrpd 12960 infmrp1 13274 dfrp2 13324 iccdil 13420 icccntr 13422 1mod 13837 expgt0 14032 resqrex 15187 sqrtdiv 15202 sqrtneglem 15203 mulcn2 15533 ef01bndlem 16123 sinltx 16128 met1stc 24482 met2ndci 24483 bcthlem4 25300 itg2mulc 25721 dvferm1 25962 dvne0 25989 reeff1o 26430 ellogdm 26621 cxpge0 26665 cxple2a 26681 cxpcn3lem 26730 cxpaddlelem 26734 cxpaddle 26735 atanbnd 26909 rlimcnp 26948 amgm 26974 chtub 27196 chebbnd1 27456 chto1ub 27460 pntlem3 27593 blocni 30899 rpdp2cl 32980 dp2ltc 32985 dplti 33003 dpgti 33004 dpexpp1 33006 dpmul4 33012 fdvposlt 34783 hgt750lem 34835 unbdqndv2lem2 36738 heiborlem8 38098 dvrelog2 42463 dvrelog3 42464 sqrtcvallem1 44016 wallispilem4 46455 perfectALTVlem2 48111 regt1loggt0 48925 |
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