Comment #9 on issue 1924 by smichr: Eq() gets .as_basic() method
http://code.google.com/p/sympy/issues/detail?id=1924

Ronan, could you please give consideration to the difference between Basic and basic just as we do for Integer and integer? Poly is also a Basic and has this mechanism:

Poly(x)
Poly(x, x, domain='ZZ')
isinstance(_,Basic)
True
Poly(x).as_basic()
x

And sympify doesn't do anything to an Eq in terms of converting it to anything else: S(Eq(x, y)) is still and Eq.

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