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| Mirrors > Home > ILE Home > Th. List > 2rp | GIF version | ||
| Description: 2 is a positive real. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| 2rp | ⊢ 2 ∈ ℝ+ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re 9377 | . 2 ⊢ 2 ∈ ℝ | |
| 2 | 2pos 9398 | . 2 ⊢ 0 < 2 | |
| 3 | 1, 2 | elrpii 10068 | 1 ⊢ 2 ∈ ℝ+ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 2c2 9358 ℝ+crp 10065 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8271 ax-resscn 8272 ax-1cn 8273 ax-1re 8274 ax-icn 8275 ax-addcl 8276 ax-addrcl 8277 ax-mulcl 8278 ax-addcom 8280 ax-addass 8282 ax-i2m1 8285 ax-0lt1 8286 ax-0id 8288 ax-rnegex 8289 ax-pre-lttrn 8294 ax-pre-ltadd 8296 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-xp 4780 df-iota 5337 df-fv 5385 df-ov 6088 df-pnf 8363 df-mnf 8364 df-ltxr 8366 df-2 9366 df-rp 10066 |
| This theorem is used by: rphalfcl 10093 qbtwnrelemcalc 10701 flhalf 10752 fldiv4lem1div2uz2 10756 cvg1nlemcxze 11764 cvg1nlemres 11767 resqrexlemdec 11793 resqrexlemlo 11795 resqrexlemcvg 11801 abstri 11887 maxabsle 11987 maxabslemlub 11990 maxltsup 12001 bdtri 12025 efcllemp 12444 cos12dec 12554 bitsfzolem 12740 bitsfzo 12741 bitsmod 12742 oddprm 13061 2expltfac 13242 ivthdichlem 15843 sin0pilem2 15975 cosordlem 16042 2logb9irrALT 16171 sqrt2cxp2logb9e3 16172 log2tlbndlog2 16181 log2ublog2 16185 birthdaylog2 16189 cht2 16237 cht3 16238 1sgm2ppw 16250 chtqub 16257 bclbnd 16268 bposlem6 16277 bposlem7 16278 bposlem8 16279 bposlem9 16280 gausslemma2dlem1a 16343 2lgslem3b 16379 2lgslem3c 16380 2lgslem3d 16381 cvgcmp2nlemabs 17247 cvgcmp2n 17248 trilpolemclim 17252 trilpolemcl 17253 trilpolemisumle 17254 trilpolemeq1 17256 trilpolemlt1 17257 apdifflemf 17262 nconstwlpolemgt0 17281 taupi 17290 |
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