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| Mirrors > Home > ILE Home > Th. List > 1rp | GIF version | ||
| Description: 1 is a positive real. (Contributed by Jeff Hankins, 23-Nov-2008.) |
| Ref | Expression |
|---|---|
| 1rp | ⊢ 1 ∈ ℝ+ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1re 8275 | . 2 ⊢ 1 ∈ ℝ | |
| 2 | 0lt1 8402 | . 2 ⊢ 0 < 1 | |
| 3 | 1, 2 | elrpii 9992 | 1 ⊢ 1 ∈ ℝ+ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2205 1c1 8130 ℝ+crp 9989 |
| 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-in1 619 ax-in2 620 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-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-cnex 8220 ax-resscn 8221 ax-1re 8223 ax-addrcl 8226 ax-0lt1 8235 ax-rnegex 8238 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-xp 4757 df-pnf 8312 df-mnf 8313 df-ltxr 8315 df-rp 9990 |
| This theorem is referenced by: rpreccl 10016 rpexpcl 10924 caubnd2 11806 climcaucn 12040 fprodrpcl 12301 isprm6 12848 unirnblps 15304 unirnbl 15305 mopnex 15387 tgioo 15436 cncfmptc 15478 dveflem 15608 log1 15748 logrpap0b 15758 rplogcl 15761 logge0 15762 logge0b 15772 loggt0b 15773 1cxp 15782 rplogb1 15830 logbrec 15842 logbgcd1irraplemexp 15850 iooref1o 16835 qdiff 16850 |
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