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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 9513 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
3 | 1 | rpgt0d 9516 | . 2 ⊢ (𝜑 → 0 < 𝐴) |
4 | 2, 3 | jca 304 | 1 ⊢ (𝜑 → (𝐴 ∈ ℝ ∧ 0 < 𝐴)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∈ wcel 1481 class class class wbr 3937 ℝcr 7643 0cc0 7644 < clt 7824 ℝ+crp 9470 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-rab 2426 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-br 3938 df-rp 9471 |
This theorem is referenced by: reclt1d 9527 recgt1d 9528 ltrecd 9532 lerecd 9533 ltrec1d 9534 lerec2d 9535 lediv2ad 9536 ltdiv2d 9537 lediv2d 9538 ledivdivd 9539 divge0d 9554 ltmul1d 9555 ltmul2d 9556 lemul1d 9557 lemul2d 9558 ltdiv1d 9559 lediv1d 9560 ltmuldivd 9561 ltmuldiv2d 9562 lemuldivd 9563 lemuldiv2d 9564 ltdivmuld 9565 ltdivmul2d 9566 ledivmuld 9567 ledivmul2d 9568 ltdiv23d 9574 lediv23d 9575 lt2mul2divd 9582 mertenslemi1 11336 isprm6 11861 |
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