Kay Schluehr wrote:

> Reduction provides often the advantage to make expressions/statements 
> scriptable what they are not in Python. Python is strong in scripting 
> classes/objects ( a big plus of the language ) but you can't simply use 
> the language to prove that
> 
>                 lambda x,y: x+y*y
>                 lambda x,y: y**2+x
> 
> are essentialy the same functions with different implementations [1].

Except that they are not. Think of __pow__, think of __add__ and __radd__.

Reinhold


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