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sage: reset() sage: var('a b c x y z') (a, b, c, x, y, z)

sage: assert( (e^x)^y == e^(x*y) )

AssertionError Traceback (most recent call last) /Users/marks/mysage/sage-9.0/local/lib/python3.7/site-packages/sage/all_cmdline.py in <module>() ----> 1 assert( (ex)y == e*(xy) )

AssertionError: sage: assert( (e^2)^3 == e^(2*3) ) sage:

sage: reset() sage: var('a b c x y z') (a, b, c, x, y, z)

z) sage: assert( (e^x)^y == e^(x*y) )

e^(xy) ) --------------------------------------------------------------------------- AssertionError Traceback (most recent call last) /Users/marks/mysage/sage-9.0/local/lib/python3.7/site-packages/sage/all_cmdline.py in <module>() ----> 1 assert( (ex)y == e*(x(xy) )

AssertionError: 
sage: assert( (e^2)^3 == e^(2*3) )
sage: 
sage:

sage: reset() Is this a bug ?

sage: var('a b c x y z')
 (a, b, c, x, y, z)
 sage: assert( (e^x)^y == e^(xy) e^(x*y) )
 ---------------------------------------------------------------------------
 AssertionError                            Traceback (most recent call last)
 /Users/marks/mysage/sage-9.0/local/lib/python3.7/site-packages/sage/all_cmdline.py in <module>()
 ----> 1 assert( (ex)y (e**x)**y == e(xy) )
e**(x*y) )
  
AssertionError: 
sage: assert( (e^2)^3 == e^(2*3) )
sage: