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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 9383 | . 2 ⊢ 2 ∈ ℝ | |
| 2 | 2pos 9404 | . 2 ⊢ 0 < 2 | |
| 3 | 1, 2 | elrpii 10074 | 1 ⊢ 2 ∈ ℝ+ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 2c2 9364 ℝ+crp 10071 |
| 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 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-i2m1 8290 ax-0lt1 8291 ax-0id 8293 ax-rnegex 8294 ax-pre-lttrn 8299 ax-pre-ltadd 8301 |
| 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 4132 df-opab 4194 df-xp 4782 df-iota 5340 df-fv 5388 df-ov 6091 df-pnf 8368 df-mnf 8369 df-ltxr 8371 df-2 9372 df-rp 10072 |
| This theorem is used by: rphalfcl 10099 qbtwnrelemcalc 10707 flhalf 10758 fldiv4lem1div2uz2 10762 cvg1nlemcxze 11770 cvg1nlemres 11773 resqrexlemdec 11799 resqrexlemlo 11801 resqrexlemcvg 11807 abstri 11893 maxabsle 11993 maxabslemlub 11996 maxltsup 12007 bdtri 12031 efcllemp 12450 cos12dec 12560 bitsfzolem 12746 bitsfzo 12747 bitsmod 12748 oddprm 13067 2expltfac 13248 ivthdichlem 15877 sin0pilem2 16009 cosordlem 16077 2logb9irrALT 16210 sqrt2cxp2logb9e3 16211 log2tlbndlog2 16220 log2ublog2 16224 birthdaylog2 16228 cht2 16276 cht3 16277 1sgm2ppw 16289 chtqub 16296 bclbnd 16307 bposlem6 16316 bposlem7 16317 bposlem8 16318 bposlem9 16319 gausslemma2dlem1a 16382 2lgslem3b 16418 2lgslem3c 16419 2lgslem3d 16420 cvgcmp2nlemabs 17287 cvgcmp2n 17288 trilpolemclim 17292 trilpolemcl 17293 trilpolemisumle 17294 trilpolemeq1 17296 trilpolemlt1 17297 apdifflemf 17302 nconstwlpolemgt0 17321 taupi 17330 |
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