![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > halfgt0 | Structured version Visualization version GIF version |
Description: One-half is greater than zero. (Contributed by NM, 24-Feb-2005.) |
Ref | Expression |
---|---|
halfgt0 | ⊢ 0 < (1 / 2) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2re 11513 | . 2 ⊢ 2 ∈ ℝ | |
2 | 2pos 11549 | . 2 ⊢ 0 < 2 | |
3 | 1, 2 | recgt0ii 11346 | 1 ⊢ 0 < (1 / 2) |
Colors of variables: wff setvar class |
Syntax hints: class class class wbr 4926 (class class class)co 6975 0cc0 10334 1c1 10335 < clt 10473 / cdiv 11097 2c2 11494 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1759 ax-4 1773 ax-5 1870 ax-6 1929 ax-7 1966 ax-8 2053 ax-9 2060 ax-10 2080 ax-11 2094 ax-12 2107 ax-13 2302 ax-ext 2745 ax-sep 5057 ax-nul 5064 ax-pow 5116 ax-pr 5183 ax-un 7278 ax-resscn 10391 ax-1cn 10392 ax-icn 10393 ax-addcl 10394 ax-addrcl 10395 ax-mulcl 10396 ax-mulrcl 10397 ax-mulcom 10398 ax-addass 10399 ax-mulass 10400 ax-distr 10401 ax-i2m1 10402 ax-1ne0 10403 ax-1rid 10404 ax-rnegex 10405 ax-rrecex 10406 ax-cnre 10407 ax-pre-lttri 10408 ax-pre-lttrn 10409 ax-pre-ltadd 10410 ax-pre-mulgt0 10411 |
This theorem depends on definitions: df-bi 199 df-an 388 df-or 835 df-3or 1070 df-3an 1071 df-tru 1511 df-ex 1744 df-nf 1748 df-sb 2017 df-mo 2548 df-eu 2585 df-clab 2754 df-cleq 2766 df-clel 2841 df-nfc 2913 df-ne 2963 df-nel 3069 df-ral 3088 df-rex 3089 df-reu 3090 df-rmo 3091 df-rab 3092 df-v 3412 df-sbc 3677 df-csb 3782 df-dif 3827 df-un 3829 df-in 3831 df-ss 3838 df-nul 4174 df-if 4346 df-pw 4419 df-sn 4437 df-pr 4439 df-op 4443 df-uni 4710 df-br 4927 df-opab 4989 df-mpt 5006 df-id 5309 df-po 5323 df-so 5324 df-xp 5410 df-rel 5411 df-cnv 5412 df-co 5413 df-dm 5414 df-rn 5415 df-res 5416 df-ima 5417 df-iota 6150 df-fun 6188 df-fn 6189 df-f 6190 df-f1 6191 df-fo 6192 df-f1o 6193 df-fv 6194 df-riota 6936 df-ov 6978 df-oprab 6979 df-mpo 6980 df-er 8088 df-en 8306 df-dom 8307 df-sdom 8308 df-pnf 10475 df-mnf 10476 df-xr 10477 df-ltxr 10478 df-le 10479 df-sub 10671 df-neg 10672 df-div 11098 df-2 11502 |
This theorem is referenced by: halfge0 11663 geo2sum 15088 oddge22np1 15557 ltoddhalfle 15569 halfleoddlt 15570 itg2monolem3 24072 aaliou3lem1 24650 aaliou3lem2 24651 aaliou3lem3 24652 cxpsqrtlem 25002 cxpsqrt 25003 chordthmlem4 25130 asinsin 25187 gausslemma2dlem1a 25659 chtppilim 25769 dnizeq0 33367 dnizphlfeqhlf 33368 cnndvlem1 33429 cntotbnd 34549 halffl 41022 stoweidlem5 41751 stoweidlem28 41774 fourierdlem103 41955 fourierdlem104 41956 |
Copyright terms: Public domain | W3C validator |