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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 9905 | . 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 2201 class class class wbr 4089 0cc0 8037 < clt 8219 ℝ+crp 9893 |
| 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 2212 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-rab 2518 df-v 2803 df-un 3203 df-sn 3676 df-pr 3677 df-op 3679 df-br 4090 df-rp 9894 |
| This theorem is referenced by: rpregt0d 9943 ltmulgt11d 9972 ltmulgt12d 9973 gt0divd 9974 ge0divd 9975 lediv12ad 9996 expgt0 10840 nnesq 10927 bccl2 11036 resqrexlemp1rp 11589 resqrexlemover 11593 resqrexlemnm 11601 resqrexlemgt0 11603 resqrexlemglsq 11605 sqrtgt0d 11742 reccn2ap 11896 fsumlt 12048 eirraplem 12361 dvdsmodexp 12379 bitsmod 12540 prmind2 12715 sqrt2irrlem 12756 modprmn0modprm0 12852 4sqlem11 12997 4sqlem12 12998 modxai 13012 ssblex 15184 mulc1cncf 15342 cncfmptc 15349 mulcncflem 15360 cnplimclemle 15421 pilem3 15536 sgmnncl 15741 iooref1o 16705 trilpolemeq1 16711 nconstwlpolemgt0 16736 taupi 16745 |
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