Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium Assumptions

New issue 3634 by mrock...@gmail.com: `is_attribute` syntax in core
http://code.google.com/p/sympy/issues/detail?id=3634

Old assumptions queries expressions with syntax like the following

    x.is_positive

New assumptions queries expressions with syntax like the following

    ask(Q.positive(x))

$ cd sympy/core/
$ ack-grep "\.is_[a-z]" | wc -l
1388

This syntax occurs in core 1388 times.  In all of sympy 3273 times.

Do we replace these lines? Do we replace the definition of the `is_attribute` syntax to use ask?

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