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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 9994 | . 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 2203 class class class wbr 4108 0cc0 8123 < clt 8304 ℝ+crp 9982 |
| 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 2214 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-rab 2529 df-v 2814 df-un 3214 df-sn 3694 df-pr 3695 df-op 3697 df-br 4109 df-rp 9983 |
| This theorem is referenced by: rpregt0d 10032 ltmulgt11d 10061 ltmulgt12d 10062 gt0divd 10063 ge0divd 10064 lediv12ad 10085 expgt0 10930 nnesq 11017 bccl2 11126 resqrexlemp1rp 11684 resqrexlemover 11688 resqrexlemnm 11696 resqrexlemgt0 11698 resqrexlemglsq 11700 sqrtgt0d 11837 reccn2ap 11991 fsumlt 12143 eirraplem 12456 dvdsmodexp 12474 bitsmod 12635 prmind2 12810 sqrt2irrlem 12851 modprmn0modprm0 12947 4sqlem11 13092 4sqlem12 13093 modxai 13107 ssblex 15283 mulc1cncf 15441 cncfmptc 15448 mulcncflem 15459 cnplimclemle 15520 pilem3 15635 sgmnncl 15843 iooref1o 16805 trilpolemeq1 16811 nconstwlpolemgt0 16836 taupi 16845 |
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