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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 9924 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| 3 | 1 | rpgt0d 9927 | . 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 2200 class class class wbr 4086 ℝcr 8024 0cc0 8025 < clt 8207 ℝ+crp 9881 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rab 2517 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-sn 3673 df-pr 3674 df-op 3676 df-br 4087 df-rp 9882 |
| This theorem is referenced by: reclt1d 9938 recgt1d 9939 ltrecd 9943 lerecd 9944 ltrec1d 9945 lerec2d 9946 lediv2ad 9947 ltdiv2d 9948 lediv2d 9949 ledivdivd 9950 divge0d 9965 ltmul1d 9966 ltmul2d 9967 lemul1d 9968 lemul2d 9969 ltdiv1d 9970 lediv1d 9971 ltmuldivd 9972 ltmuldiv2d 9973 lemuldivd 9974 lemuldiv2d 9975 ltdivmuld 9976 ltdivmul2d 9977 ledivmuld 9978 ledivmul2d 9979 ltdiv23d 9985 lediv23d 9986 lt2mul2divd 9993 mertenslemi1 12089 isprm6 12712 |
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