Hi all,

So I was surprised to find out that asking if a polynomial is > 0 doesn't 
raise an error. Now, maybe there's a good reason why it returns True and 
I'm too tired to think about why. At the very least, here is some 
disturbing behaviour.

sage: R.<x> = PolynomialRing(QQ)
sage: x > x-1
True
sage: R.<x,y> = PolynomialRing(QQ)
sage: x > x-1
False
sage: x+1 > x
True 

I'm hoping someone can tell me why this behaviour is correct, or confirm 
that it's wrong.

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