|  1 |    initial version    |  
You can at least do it in another way:
sage: def myMin(x,y):
....:     return min(x,y)
....: 
sage: print myMin(3,2)
2
 But concerning your original post, it really looks like a bug. I am not expert enough. If it is indeed a bug, we should report it.
 
                
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