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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 8773 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
3 | 1 | rpgt0d 8776 | . 2 ⊢ (𝜑 → 0 < 𝐴) |
4 | 2, 3 | jca 300 | 1 ⊢ (𝜑 → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 102 ∈ wcel 1433 class class class wbr 3785 ℝcr 6980 0cc0 6981 < clt 7153 ℝ+crp 8734 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-rab 2357 df-v 2603 df-un 2977 df-in 2979 df-ss 2986 df-sn 3404 df-pr 3405 df-op 3407 df-br 3786 df-rp 8735 |
This theorem is referenced by: reclt1d 8787 recgt1d 8788 ltrecd 8792 lerecd 8793 ltrec1d 8794 lerec2d 8795 lediv2ad 8796 ltdiv2d 8797 lediv2d 8798 ledivdivd 8799 divge0d 8814 ltmul1d 8815 ltmul2d 8816 lemul1d 8817 lemul2d 8818 ltdiv1d 8819 lediv1d 8820 ltmuldivd 8821 ltmuldiv2d 8822 lemuldivd 8823 lemuldiv2d 8824 ltdivmuld 8825 ltdivmul2d 8826 ledivmuld 8827 ledivmul2d 8828 ltdiv23d 8834 lediv23d 8835 lt2mul2divd 8836 isprm6 10526 |
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