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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 5063 | . 2 ⊢ (𝑥 = 𝐴 → (0 < 𝑥 ↔ 0 < 𝐴)) | |
2 | df-rp 12384 | . 2 ⊢ ℝ+ = {𝑥 ∈ ℝ ∣ 0 < 𝑥} | |
3 | 1, 2 | elrab2 3683 | 1 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∧ wa 398 ∈ wcel 2110 class class class wbr 5059 ℝcr 10530 0cc0 10531 < clt 10669 ℝ+crp 12383 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2156 ax-12 2172 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-rab 3147 df-v 3497 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4562 df-pr 4564 df-op 4568 df-br 5060 df-rp 12384 |
This theorem is referenced by: elrpii 12386 nnrp 12394 rpgt0 12395 rpregt0 12397 ralrp 12403 rexrp 12404 rpaddcl 12405 rpmulcl 12406 rpdivcl 12408 rpgecl 12411 rphalflt 12412 ge0p1rp 12414 rpneg 12415 negelrp 12416 ltsubrp 12419 ltaddrp 12420 difrp 12421 elrpd 12422 infmrp1 12731 iccdil 12870 icccntr 12872 1mod 13265 expgt0 13456 resqrex 14604 sqrtdiv 14619 sqrtneglem 14620 mulcn2 14946 ef01bndlem 15531 sinltx 15536 met1stc 23125 met2ndci 23126 bcthlem4 23924 itg2mulc 24342 dvferm1 24576 dvne0 24602 reeff1o 25029 ellogdm 25216 cxpge0 25260 cxple2a 25276 cxpcn3lem 25322 cxpaddlelem 25326 cxpaddle 25327 atanbnd 25498 rlimcnp 25537 amgm 25562 chtub 25782 chebbnd1 26042 chto1ub 26046 pntlem3 26179 blocni 28576 dfrp2 30485 rpdp2cl 30553 dp2ltc 30558 dplti 30576 dpgti 30577 dpexpp1 30579 dpmul4 30585 fdvposlt 31865 hgt750lem 31917 unbdqndv2lem2 33844 heiborlem8 35090 wallispilem4 42346 perfectALTVlem2 43880 regt1loggt0 44589 |
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