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| Mirrors > Home > MPE Home > Th. List > rpregt0 | Structured version Visualization version GIF version | ||
| Description: A positive real is a positive real number. (Contributed by NM, 11-Nov-2008.) (Revised by Mario Carneiro, 31-Jan-2014.) |
| Ref | Expression |
|---|---|
| rpregt0 | ⊢ (𝐴 ∈ ℝ+ → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrp 13123 | . 2 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) | |
| 2 | 1 | biimpi 219 | 1 ⊢ (𝐴 ∈ ℝ+ → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2144 class class class wbr 5102 ℝcr 11200 0cc0 11201 < clt 11344 ℝ+crp 13121 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-br 5103 df-rp 13122 |
| This theorem is used by: rpne0 13138 divlt1lt 13192 divle1le 13193 ledivge1le 13194 nnledivrp 13235 modge0 14020 modlt 14021 modid 14037 modmuladdnn0 14059 expnlbnd 14378 o1fsum 15981 isprm6 16891 gexexlem 20067 lmnn 25585 aaliou2b 26669 harmonicbnd4 27339 logfaclbnd 27550 logfacrlim 27552 chto1ub 27804 vmadivsum 27810 dchrmusumlema 27821 dchrvmasumlem2 27826 dchrisum0lem2a 27845 dchrisum0lem2 27846 dchrisum0lem3 27847 mulogsumlem 27859 mulog2sumlem2 27863 selberg2lem 27878 selberg3lem1 27885 pntrmax 27892 pntrsumo1 27893 pntibndlem3 27920 divge1b 49700 divgt1b 49701 |
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