> sage: G.<a, b, c> = FreeGroup()
> sage: G
> Free Group on the Set {a, c, b}
> sage: b
> c
>
> This is probably due more to crappy programming on my part rather than
> the Set issue, but the latter did confuse me.

I think this is due to a poor definition: the decision was made that  
variables are named and order matters.  So G.<a,b,c> = FreeGroup() and  
G.<a,c,b> = FreeGroup() are different objects -- the lists of  
generators have different names, and that makes them distinct.  So  
printing the "Free Group on the Set {a, b, c}" is misleading because  
the current convention is that "FG on a, b" and "FG on b, a" are  
distinct.

Nick

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