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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 9900 | . 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 2202 class class class wbr 4088 0cc0 8032 < clt 8214 ℝ+crp 9888 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rab 2519 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-rp 9889 |
| This theorem is referenced by: rpregt0d 9938 ltmulgt11d 9967 ltmulgt12d 9968 gt0divd 9969 ge0divd 9970 lediv12ad 9991 expgt0 10835 nnesq 10922 bccl2 11031 resqrexlemp1rp 11568 resqrexlemover 11572 resqrexlemnm 11580 resqrexlemgt0 11582 resqrexlemglsq 11584 sqrtgt0d 11721 reccn2ap 11875 fsumlt 12027 eirraplem 12340 dvdsmodexp 12358 bitsmod 12519 prmind2 12694 sqrt2irrlem 12735 modprmn0modprm0 12831 4sqlem11 12976 4sqlem12 12977 modxai 12991 ssblex 15158 mulc1cncf 15316 cncfmptc 15323 mulcncflem 15334 cnplimclemle 15395 pilem3 15510 sgmnncl 15715 iooref1o 16659 trilpolemeq1 16665 nconstwlpolemgt0 16689 taupi 16698 |
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