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| Mirrors > Home > MPE Home > Th. List > elrpii | Structured version Visualization version GIF version | ||
| Description: Membership in the set of positive reals. (Contributed by NM, 23-Feb-2008.) |
| Ref | Expression |
|---|---|
| elrpi.1 | ⊢ 𝐴 ∈ ℝ |
| elrpi.2 | ⊢ 0 < 𝐴 |
| Ref | Expression |
|---|---|
| elrpii | ⊢ 𝐴 ∈ ℝ+ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrpi.1 | . 2 ⊢ 𝐴 ∈ ℝ | |
| 2 | elrpi.2 | . 2 ⊢ 0 < 𝐴 | |
| 3 | elrp 13122 | . 2 ⊢ (𝐴 ∈ ℝ+ ↔ (𝐴 ∈ ℝ ∧ 0 < 𝐴)) | |
| 4 | 1, 2, 3 | mpbir2an 724 | 1 ⊢ 𝐴 ∈ ℝ+ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2144 class class class wbr 5102 ℝcr 11199 0cc0 11200 < clt 11343 ℝ+crp 13120 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-br 5103 df-rp 13121 |
| This theorem is used by: 1rp 13124 2rp 13125 3rp 13126 5rp 13127 iexpcyc 14351 discr 14384 epr 16376 aaliou3lem1 26669 aaliou3lem2 26670 aaliou3lem3 26671 pirp 26790 pigt3 26846 efif1olem2 26871 cxpsqrtlem 27030 log2cnv 27272 chtublem 27538 chtub 27539 bposlem6 27616 lgsdir2lem1 27652 lgsdir2lem4 27655 lgsdir2lem5 27656 2sqlem11 27756 chebbnd1lem3 27798 chebbnd1 27799 pntlemg 27925 pntlemr 27929 pntlemf 27932 minvecolem3 31478 dp2lt10 33450 ballotlem2 35121 cntotbnd 38731 heiborlem5 38750 heiborlem7 38752 4rp 43358 6rp 43359 7rp 43360 8rp 43361 9rp 43362 isosctrlem1ALT 45916 sineq0ALT 45919 limclner 46661 stoweidlem5 47015 stoweidlem28 47038 stoweidlem59 47069 stoweid 47073 stirlinglem12 47095 fourierswlem 47240 fouriersw 47241 goldrarp 47931 |
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