Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 4115 by [email protected]: Move old assumptions from Basic to
Expr
http://code.google.com/p/sympy/issues/detail?id=4115
Old assumptions are built on Basic but generally only used on Exprs. This
imbues all Basics with magical properties like `is_zero` and `is_positive`,
even if those objects are Sets or Matrices for which these properties do
not have meaning.
What needs to happen for Basic to no longer inherit from
with_metaclass(ManagedProperties)? Is there anything that would
fundamentally break as a result of this decision?
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