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| Mirrors > Home > ILE Home > Th. List > rpgt0d | GIF version | ||
| Description: A positive real is greater than zero. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| rpred.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ+) |
| Ref | Expression |
|---|---|
| rpgt0d | ⊢ (𝜑 → 0 < 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpred.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
| 2 | rpgt0 9893 | . 2 ⊢ (𝐴 ∈ ℝ+ → 0 < 𝐴) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 0 < 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 class class class wbr 4086 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-sn 3673 df-pr 3674 df-op 3676 df-br 4087 df-rp 9882 |
| This theorem is referenced by: rpregt0d 9931 ltmulgt11d 9960 ltmulgt12d 9961 gt0divd 9962 ge0divd 9963 lediv12ad 9984 expgt0 10827 nnesq 10914 bccl2 11023 resqrexlemp1rp 11560 resqrexlemover 11564 resqrexlemnm 11572 resqrexlemgt0 11574 resqrexlemglsq 11576 sqrtgt0d 11713 reccn2ap 11867 fsumlt 12018 eirraplem 12331 dvdsmodexp 12349 bitsmod 12510 prmind2 12685 sqrt2irrlem 12726 modprmn0modprm0 12822 4sqlem11 12967 4sqlem12 12968 modxai 12982 ssblex 15148 mulc1cncf 15306 cncfmptc 15313 mulcncflem 15324 cnplimclemle 15385 pilem3 15500 sgmnncl 15705 iooref1o 16588 trilpolemeq1 16594 nconstwlpolemgt0 16618 taupi 16627 |
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