Mohammed,

If you send my your email I can give you a small programm that will generate a grey-code based truth table and is able to compare two optional boolean expressions.

Agnes
>hi all,
>
>i need your help,
>
>i need to write a program via( vfp code) to constract truth table of proposition assume the proposition will have no more than z variable(p,q) and calculate the truth values of the proposition for each possible set of truth values.
>
>thanks.
>m.qasem