Re: Equals, Less, Greater, etc; Confused by this simple output.

*To*: mathgroup at smc.vnet.net*Subject*: [mg109834] Re: Equals, Less, Greater, etc; Confused by this simple output.*From*: Patrick Scheibe <pscheibe at trm.uni-leipzig.de>*Date*: Wed, 19 May 2010 20:12:19 -0400 (EDT)

Hi, <snip> > I would have thought that a <= a and a >= a would both evaluate to > True, given that a == a does. You cannot order complex numbers and now guess, what Mathematica uses for "a". Simplify[{a == a, a <= a, a >= a, a < a, a > a}, Element[a, Reals]] {True, True, True, False, False} Cheers Patrick