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| Mirrors > Home > ILE Home > Th. List > rpregt0d | GIF version | ||
| Description: A positive real is real and greater than zero. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| rpred.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ+) |
| Ref | Expression |
|---|---|
| rpregt0d | ⊢ (𝜑 → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpred.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
| 2 | 1 | rpred 9855 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| 3 | 1 | rpgt0d 9858 | . 2 ⊢ (𝜑 → 0 < 𝐴) |
| 4 | 2, 3 | jca 306 | 1 ⊢ (𝜑 → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2178 class class class wbr 4060 ℝcr 7961 0cc0 7962 < clt 8144 ℝ+crp 9812 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-rab 2495 df-v 2779 df-un 3179 df-in 3181 df-ss 3188 df-sn 3650 df-pr 3651 df-op 3653 df-br 4061 df-rp 9813 |
| This theorem is referenced by: reclt1d 9869 recgt1d 9870 ltrecd 9874 lerecd 9875 ltrec1d 9876 lerec2d 9877 lediv2ad 9878 ltdiv2d 9879 lediv2d 9880 ledivdivd 9881 divge0d 9896 ltmul1d 9897 ltmul2d 9898 lemul1d 9899 lemul2d 9900 ltdiv1d 9901 lediv1d 9902 ltmuldivd 9903 ltmuldiv2d 9904 lemuldivd 9905 lemuldiv2d 9906 ltdivmuld 9907 ltdivmul2d 9908 ledivmuld 9909 ledivmul2d 9910 ltdiv23d 9916 lediv23d 9917 lt2mul2divd 9924 mertenslemi1 12007 isprm6 12630 |
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