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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 13024 | . 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 400 ∈ wcel 2142 class class class wbr 5108 ℝcr 11105 0cc0 11106 < clt 11249 ℝ+crp 13022 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-rp 13023 |
| This theorem is used by: rpne0 13039 divlt1lt 13093 divle1le 13094 ledivge1le 13095 nnledivrp 13136 modge0 13919 modlt 13920 modid 13936 modmuladdnn0 13958 expnlbnd 14276 o1fsum 15872 isprm6 16779 gexexlem 19928 lmnn 25433 aaliou2b 26515 harmonicbnd4 27186 logfaclbnd 27397 logfacrlim 27399 chto1ub 27651 vmadivsum 27657 dchrmusumlema 27668 dchrvmasumlem2 27673 dchrisum0lem2a 27692 dchrisum0lem2 27693 dchrisum0lem3 27694 mulogsumlem 27706 mulog2sumlem2 27710 selberg2lem 27725 selberg3lem1 27732 pntrmax 27739 pntrsumo1 27740 pntibndlem3 27767 divge1b 49320 divgt1b 49321 |
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