====== Fam biblical ======
{{tag>family}}
===== Description =====
Biblical family relationships

**Source**:  The Art of Prolog
===== Download =====
Program source code: {{fam_biblical.pl}}
===== Listing =====
<code prolog>
father(abraham,isaac).			
father(haran,lot).			
father(haran,milcah).			
father(haran,yiscah).

male(isaac).
male(lot).

female(milcah).
female(yiscah).

son(X,Y) :- father(Y,X), male(X).
daughter(X,Y) :- father(Y,X), female(X).

%Program 1.2: Biblical family relationships</code>
===== Comments =====