Hi, while updating the manual section on Lists, I noticed that the pop() and push() functions described in the manual do not seem to make part of core Maxima anymore: (%i2) pop([1,2,3]); (%o2) pop([1,2,3]) (%i3) push(0, [1,2,3]); (%o3) push(0, [1,2,3]) have they been moved to some additional package, or were they removed? Cheers, Jaime