Evaluate the following lambda expressions using eager beta-reduction (use the standard interpretations for numbers and boo leans wherever needed).

Evaluate the expressions in the previous exercise using lazy beta-reduction. Do you get the same results?

Evaluate the following expressions using your Scheme interpreter:

Evaluate the Scheme expression (sum 1 2 3 4 5 ), showing all the steps in the expansion of the sum function given in this chapter.

(a) ((x-x*x)5) (b) ((Ay-((x-x+y+z)3))2) (c) ((av (Aw-w)) ((x- x)(y(az z))))