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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 8178 | . 2 ⊢ 1 ∈ ℝ | |
| 2 | 0lt1 8306 | . 2 ⊢ 0 < 1 | |
| 3 | 1, 2 | elrpii 9891 | 1 ⊢ 1 ∈ ℝ+ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 1c1 8033 ℝ+crp 9888 |
| 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 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-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8123 ax-resscn 8124 ax-1re 8126 ax-addrcl 8129 ax-0lt1 8138 ax-rnegex 8141 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-xp 4731 df-pnf 8216 df-mnf 8217 df-ltxr 8219 df-rp 9889 |
| This theorem is referenced by: rpreccl 9915 rpexpcl 10821 caubnd2 11695 climcaucn 11929 fprodrpcl 12190 isprm6 12737 unirnblps 15165 unirnbl 15166 mopnex 15248 tgioo 15297 cncfmptc 15339 dveflem 15469 log1 15609 logrpap0b 15619 rplogcl 15622 logge0 15623 logge0b 15633 loggt0b 15634 1cxp 15643 rplogb1 15691 logbrec 15703 logbgcd1irraplemexp 15711 iooref1o 16689 qdiff 16704 |
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