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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 10025 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| 3 | 1 | rpgt0d 10028 | . 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 2203 class class class wbr 4108 ℝcr 8122 0cc0 8123 < clt 8304 ℝ+crp 9982 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-rab 2529 df-v 2814 df-un 3214 df-in 3216 df-ss 3223 df-sn 3694 df-pr 3695 df-op 3697 df-br 4109 df-rp 9983 |
| This theorem is referenced by: reclt1d 10039 recgt1d 10040 ltrecd 10044 lerecd 10045 ltrec1d 10046 lerec2d 10047 lediv2ad 10048 ltdiv2d 10049 lediv2d 10050 ledivdivd 10051 divge0d 10066 ltmul1d 10067 ltmul2d 10068 lemul1d 10069 lemul2d 10070 ltdiv1d 10071 lediv1d 10072 ltmuldivd 10073 ltmuldiv2d 10074 lemuldivd 10075 lemuldiv2d 10076 ltdivmuld 10077 ltdivmul2d 10078 ledivmuld 10079 ledivmul2d 10080 ltdiv23d 10086 lediv23d 10087 lt2mul2divd 10094 mertenslemi1 12214 isprm6 12837 |
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