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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 9878 | . 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 4083 0cc0 8015 < clt 8197 ℝ+crp 9866 |
| 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 2801 df-un 3201 df-sn 3672 df-pr 3673 df-op 3675 df-br 4084 df-rp 9867 |
| This theorem is referenced by: rpregt0d 9916 ltmulgt11d 9945 ltmulgt12d 9946 gt0divd 9947 ge0divd 9948 lediv12ad 9969 expgt0 10811 nnesq 10898 bccl2 11007 resqrexlemp1rp 11538 resqrexlemover 11542 resqrexlemnm 11550 resqrexlemgt0 11552 resqrexlemglsq 11554 sqrtgt0d 11691 reccn2ap 11845 fsumlt 11996 eirraplem 12309 dvdsmodexp 12327 bitsmod 12488 prmind2 12663 sqrt2irrlem 12704 modprmn0modprm0 12800 4sqlem11 12945 4sqlem12 12946 modxai 12960 ssblex 15126 mulc1cncf 15284 cncfmptc 15291 mulcncflem 15302 cnplimclemle 15363 pilem3 15478 sgmnncl 15683 iooref1o 16516 trilpolemeq1 16522 nconstwlpolemgt0 16546 taupi 16555 |
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