Re: How to force Mathematica to treat a number as positive and real?

*To*: mathgroup at smc.vnet.net*Subject*: [mg51936] Re: How to force Mathematica to treat a number as positive and real?*From*: David Bailey <dave at Remove_Thisdbailey.co.uk>*Date*: Fri, 5 Nov 2004 02:17:59 -0500 (EST)*References*: <cm9vi3$8nc$1@smc.vnet.net> <cmclh7$i86$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Sorry, I notice that a special character in my reply has got scrambled in the email. The character in question is the one you obtain by typing \[Element] So, for example I meant to write: Simplify[{Abs[a], Re[a]}, Assumptions -> {a \[Element] Reals, a >= 0}] David Bailey