Maxima Function
setequalp (a, b)
Returns true if sets a and b have the same number of elements
and is(x = y) is true
for x in the elements of a
and y in the elements of b,
considered in the order determined by listify.
Otherwise, setequalp returns false.
Examples:
(%i1) setequalp ({1, 2, 3}, {1, 2, 3}); (%o1) true (%i2) setequalp ({a, b, c}, {1, 2, 3}); (%o2) false (%i3) setequalp ({x^2 - y^2}, {(x + y) * (x - y)}); (%o3) false