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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 13149 | . 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 2147 class class class wbr 5106 ℝcr 11226 0cc0 11227 < clt 11370 ℝ+crp 13147 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-br 5107 df-rp 13148 |
| This theorem is used by: rpne0 13164 divlt1lt 13218 divle1le 13219 ledivge1le 13220 nnledivrp 13261 modge0 14046 modlt 14047 modid 14063 modmuladdnn0 14085 expnlbnd 14404 o1fsum 16009 isprm6 16919 gexexlem 20096 lmnn 25614 aaliou2b 26698 harmonicbnd4 27368 logfaclbnd 27579 logfacrlim 27581 chto1ub 27833 vmadivsum 27839 dchrmusumlema 27850 dchrvmasumlem2 27855 dchrisum0lem2a 27874 dchrisum0lem2 27875 dchrisum0lem3 27876 mulogsumlem 27888 mulog2sumlem2 27892 selberg2lem 27907 selberg3lem1 27914 pntrmax 27921 pntrsumo1 27922 pntibndlem3 27949 divge1b 49829 divgt1b 49830 |
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