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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 10004 | . 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 2205 class class class wbr 4111 0cc0 8132 < clt 8313 ℝ+crp 9992 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rab 2531 df-v 2817 df-un 3217 df-sn 3697 df-pr 3698 df-op 3700 df-br 4112 df-rp 9993 |
| This theorem is referenced by: rpregt0d 10042 ltmulgt11d 10071 ltmulgt12d 10072 gt0divd 10073 ge0divd 10074 lediv12ad 10095 expgt0 10941 nnesq 11029 bccl2 11138 resqrexlemp1rp 11699 resqrexlemover 11703 resqrexlemnm 11711 resqrexlemgt0 11713 resqrexlemglsq 11715 sqrtgt0d 11852 reccn2ap 12006 fsumlt 12158 eirraplem 12471 dvdsmodexp 12489 bitsmod 12650 prmind2 12825 sqrt2irrlem 12866 modprmn0modprm0 12962 4sqlem11 13107 4sqlem12 13108 modxai 13122 ssblex 15345 mulc1cncf 15503 cncfmptc 15510 mulcncflem 15521 cnplimclemle 15582 pilem3 15697 sgmnncl 15905 iooref1o 16867 trilpolemeq1 16873 nconstwlpolemgt0 16899 taupi 16908 |
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