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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 10035 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| 3 | 1 | rpgt0d 10038 | . 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 2205 class class class wbr 4111 ℝcr 8131 0cc0 8132 < clt 8313 ℝ+crp 9992 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rab 2531 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-sn 3697 df-pr 3698 df-op 3700 df-br 4112 df-rp 9993 |
| This theorem is referenced by: reclt1d 10049 recgt1d 10050 ltrecd 10054 lerecd 10055 ltrec1d 10056 lerec2d 10057 lediv2ad 10058 ltdiv2d 10059 lediv2d 10060 ledivdivd 10061 divge0d 10076 ltmul1d 10077 ltmul2d 10078 lemul1d 10079 lemul2d 10080 ltdiv1d 10081 lediv1d 10082 ltmuldivd 10083 ltmuldiv2d 10084 lemuldivd 10085 lemuldiv2d 10086 ltdivmuld 10087 ltdivmul2d 10088 ledivmuld 10089 ledivmul2d 10090 ltdiv23d 10096 lediv23d 10097 lt2mul2divd 10104 mertenslemi1 12229 isprm6 12852 |
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