Py2.3: Feedback on Sets

[Borcis]

David Eppstein wrote:
> 
> Multiplication by (nonnegative) integers is a pretty standard thing to 
> do in monoids, and means close to what Python's list*int syntax does: 
> add the thing to itself that many times.

"God is a superfluous hypothesis, I need just an initial condition"

 >
 > I'm not sure why multiplying a list by a negative number produces the
 > empty list instead of an exception, though.
 >

If it is illogical for it not to raise an exception, then in an appropriate
universe the theory is logically permitted that some other value than the
empty list is more logical as a result, than the empty list itself.

The-anthropy-of-the-universe-is-everrising-ly-yours-ly