Specify a parameter to be >0 and a posiutive integer?

*To*: mathgroup at smc.vnet.net*Subject*: [mg13101] Specify a parameter to be >0 and a posiutive integer?*From*: rst374 at pipeline.com (Harry A. Kiesel)*Date*: Tue, 7 Jul 1998 03:44:07 -0400*Sender*: owner-wri-mathgroup at wolfram.com

Hi Folks: I have only recently begun using Mathematica. Assumptions->{} command to specify some properties of parameters. The examplkes I have seen apply the specification within a particular function. I have two question: 1. Is there a way to specify that a particular parameter is a positive integer ( not just >0)? 2. Is it possible to globally define a parameter to be >0 and a positive integer at the outset of a series of computations/manipulations? Any help would be appreciated. Harry Kiesel, Drexel University