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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 10073 | 1 ⊢ 2 ∈ ℝ+ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 2c2 9364 ℝ+crp 10070 |
| 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 10071 |
| This theorem is used by: rphalfcl 10098 qbtwnrelemcalc 10706 flhalf 10757 fldiv4lem1div2uz2 10761 cvg1nlemcxze 11769 cvg1nlemres 11772 resqrexlemdec 11798 resqrexlemlo 11800 resqrexlemcvg 11806 abstri 11892 maxabsle 11992 maxabslemlub 11995 maxltsup 12006 bdtri 12030 efcllemp 12449 cos12dec 12559 bitsfzolem 12745 bitsfzo 12746 bitsmod 12747 oddprm 13066 2expltfac 13247 ivthdichlem 15894 sin0pilem2 16026 cosordlem 16094 2logb9irrALT 16227 sqrt2cxp2logb9e3 16228 log2tlbndlog2 16237 log2ublog2 16241 birthdaylog2 16245 cht2 16293 cht3 16294 1sgm2ppw 16306 chtqub 16313 bclbnd 16324 bposlem6 16333 bposlem7 16334 bposlem8 16335 bposlem9 16336 gausslemma2dlem1a 16399 2lgslem3b 16435 2lgslem3c 16436 2lgslem3d 16437 cvgcmp2nlemabs 17304 cvgcmp2n 17305 trilpolemclim 17309 trilpolemcl 17310 trilpolemisumle 17311 trilpolemeq1 17313 trilpolemlt1 17314 apdifflemf 17319 nconstwlpolemgt0 17338 taupi 17347 |
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