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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 10019 | . 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 4114 0cc0 8143 < clt 8324 ℝ+crp 10007 |
| 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 3218 df-sn 3700 df-pr 3701 df-op 3703 df-br 4115 df-rp 10008 |
| This theorem is referenced by: rpregt0d 10057 ltmulgt11d 10086 ltmulgt12d 10087 gt0divd 10088 ge0divd 10089 lediv12ad 10110 expgt0 10961 nnesq 11049 bccl2 11158 resqrexlemp1rp 11719 resqrexlemover 11723 resqrexlemnm 11731 resqrexlemgt0 11733 resqrexlemglsq 11735 sqrtgt0d 11872 reccn2ap 12026 fsumlt 12178 eirraplem 12491 dvdsmodexp 12509 bitsmod 12670 prmind2 12845 sqrt2irrlem 12886 modprmn0modprm0 12982 4sqlem11 13127 4sqlem12 13128 modxai 13142 ssblex 15425 mulc1cncf 15583 cncfmptc 15590 mulcncflem 15601 cnplimclemle 15662 pilem3 15777 sgmnncl 15985 iooref1o 16957 trilpolemeq1 16963 nconstwlpolemgt0 16989 taupi 16998 |
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