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Not necessarily true. See sympy's documentation for a nice abstract on the problems...
| | 2 | No.2 Revision |
Not necessarily true. See sympy's documentation for a nice abstract on the problems...
EDIT : This is the third case mentioned in the pointed documentation :
sage: bool((x^a)^b==x^(a*b))
False
sage: with assuming(b,"integer"): bool((x^a)^b==x^(a*b))
True
