'06_Prolog;'

06_prolog/desc

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+Knowledge base is in the file kb1.txt.
+
+1. Convert the file 'family-tree.txt' to Prolog Facts (format understandable for Prolog) in any language you like.
+
+The file has 4 columns: name, surname, pesel, parent's pesel
+
+2. Prepare the script, load it to Prolog and find out who are the parents of:
+
+	Haley, Vargas, 1268649062, 1897283424
+
+3. Check if the Darwin laws are in place by checking if Haley Vargas is the ancestor of an ape.
+
+4. Write in any language (in any other programming paradigm except the logic programming languages), a code which will do the same as here in Prolog. Choose the programming language wisely.
+
+5. Check if the creationist theory is correct by checking if all people come from apes.

06_prolog/ex1.pl

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+:- discontiguous male/1, female/1, parent/2.
+male(dicky).
+male(randy).
+male(mike).
+male(don).
+male(elmer).
+female(anne).
+female(rosie).
+female(esther).
+female(mildred).
+female(greatgramma).
+male(blair).
+
+parent(don,randy).
+parent(don,mike).
+parent(don,anne).
+parent(rosie,randy).
+parent(rosie,mike).
+parent(rosie,anne).
+parent(elmer,don).
+parent(mildred,don).
+parent(esther,rosie).
+parent(esther,dicky).
+parent(greatgramma,esther).
+parent(randy,blair).
+
+male(mel).
+male(teo).
+parent(melsr,mel).
+parent(melsr,teo).
+
+father(X,Y) :- male(X),parent(X,Y).
+mother(X,Y) :- female(X),parent(X,Y).

06_prolog/fac.pl

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+fac(0,1).
+fac(1,1).
+fac(2,2).
+fac(3,6).
+fac(4,24).
+fac(A,B) :-  
+           A > 0, 
+           fac(C,D),
+           C is A-1,
+           B is A*D.