Exercise - 12th November 1984               Helen Pain
AI2 Practical



Consult the file "ecmi04.useful".

List it. Work out what the predicates are supposed to do.

Try typing the following goals:

      append([a,b],[b,c,d],X).

      member(a,[c,a,b,b,a,g,e]).

      rev(X,[a,p,p,l,e]).

      nexto(a,Y,[c,a,t]).

      replace(a,e,[b,a,n,a,n,a],A).
      
      delete(a,[b,a,n,a,n,a],B).

      delall(a,[b,a,n,a,n,a],C).

      nth(5,[w,o,r,s,e,n])

      length(X,[a,s,d,f,g,h,j]).

      last(X,[a,s,d,f,g,h,j]).


Try some more goals and trace them and follow what happens.

Look and see the similarities in the structure of some of the 
predicates.