I think it is. Boolean, Set, Tuple, etc. all derive from Basic, not Expr. The issue is classes that derive from both Boolean and Expr, for example (such as Symbol).
Aaron Meurer On Sat, May 5, 2012 at 12:05 PM, [email protected] <[email protected]> wrote: > Then my question is what is Expr? There are so many things that > subclass it that I doubt that it is used only for complex numbers or > things that evaluate to a complex number. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
