Comment #4 on issue 2322 by skirpic...@gmail.com: is_real problems with
(pi/log(real))
http://code.google.com/p/sympy/issues/detail?id=2322
I think, there is some syntax misconception.
ask(pi/log(r), Q.real) - meaningless (not good proposition!). Second
argument for ask is an assumption for proposition, e.g.:
In [21]: ask(Q.real(1+x),Q.imaginary(x))
Out[21]: False
The right way to do things in reply #3:
In [17]: ask(Q.real(pi/log(r)))
In [18]: ask(Q.real((pi/log(r)).subs(r,-2)))
Out[18]: False
In [19]: ask(Q.real((pi/log(r)).subs(r,-2).n()))
Out[19]: False
All works as expected. Should we close this bug?
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