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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 9690 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
3 | 1 | rpgt0d 9693 | . 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 2148 class class class wbr 4001 ℝcr 7805 0cc0 7806 < clt 7986 ℝ+crp 9647 |
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 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-rab 2464 df-v 2739 df-un 3133 df-in 3135 df-ss 3142 df-sn 3598 df-pr 3599 df-op 3601 df-br 4002 df-rp 9648 |
This theorem is referenced by: reclt1d 9704 recgt1d 9705 ltrecd 9709 lerecd 9710 ltrec1d 9711 lerec2d 9712 lediv2ad 9713 ltdiv2d 9714 lediv2d 9715 ledivdivd 9716 divge0d 9731 ltmul1d 9732 ltmul2d 9733 lemul1d 9734 lemul2d 9735 ltdiv1d 9736 lediv1d 9737 ltmuldivd 9738 ltmuldiv2d 9739 lemuldivd 9740 lemuldiv2d 9741 ltdivmuld 9742 ltdivmul2d 9743 ledivmuld 9744 ledivmul2d 9745 ltdiv23d 9751 lediv23d 9752 lt2mul2divd 9759 mertenslemi1 11534 isprm6 12137 |
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