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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 9936 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| 3 | 1 | rpgt0d 9939 | . 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 2201 class class class wbr 4089 ℝcr 8036 0cc0 8037 < clt 8219 ℝ+crp 9893 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2212 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-rab 2518 df-v 2803 df-un 3203 df-in 3205 df-ss 3212 df-sn 3676 df-pr 3677 df-op 3679 df-br 4090 df-rp 9894 |
| This theorem is referenced by: reclt1d 9950 recgt1d 9951 ltrecd 9955 lerecd 9956 ltrec1d 9957 lerec2d 9958 lediv2ad 9959 ltdiv2d 9960 lediv2d 9961 ledivdivd 9962 divge0d 9977 ltmul1d 9978 ltmul2d 9979 lemul1d 9980 lemul2d 9981 ltdiv1d 9982 lediv1d 9983 ltmuldivd 9984 ltmuldiv2d 9985 lemuldivd 9986 lemuldiv2d 9987 ltdivmuld 9988 ltdivmul2d 9989 ledivmuld 9990 ledivmul2d 9991 ltdiv23d 9997 lediv23d 9998 lt2mul2divd 10005 mertenslemi1 12119 isprm6 12742 |
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