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Prolog problem of murder mystory

Posted By: Milind Mishra     Category: Artificial Intelligence     Views: 12942

The problem of murder mystory.
Five persons Alice,her husband,brother,son and daughter

Event: One murder.One of the five is victim and one is
Killer.
Rules:
1) Husnband and alice was not together on the night of murder
2) The killer and victim were on the beach.
3) on the night of murder,one male and one female
ware in the bar.
4) The victim was twin and the counterpart was
innocent.
5) The killer was younger than the victim.
6) One child was alone at home.

Code for Prolog problem of murder mystory in Artificial Intelligence

predicates
%    pair(symbol,symbol)
     iskiller(symbol,symbol)
    male(symbol)
    female(symbol)
    isvictim(symbol)
    not_at_bar(symbol,symbol)
    not_at_beach(symbol,symbol)
    not_alone(symbol)
    twin(symbol,symbol)
    younger(symbol,symbol)
    child(symbol)
    
clauses    
    male(husband).
    male(brother).
    male(son).
    
    female(alice).
    female(daughter).
    
    twin(brother,alice).
    twin(son,daughter).
    
    child(son).
    child(daughter).
    
    not_alone(
    not_alone(alice).
    not_alone(brother).
    not_alone(X):-
        
        
    child(X),child(Y)
        
    
    not_at_beach(husband,alice).
    not_at_beach(son,daughter).
    
    not_at_bar(son,daughter).
    not_at_bar(husband,alice).
    not_at_bar(X,Y):-
        male(X),male(Y).
    not_at_bar(X,Y):-
        female(X),female(Y).
    
    
    isvictim(X):-
        twin(X,Y),not(iskiller(Y,X)).
    isvictim(X):-
        twin(Y,X),not(iskiller(Y,X)).
                
        
    younger(son,alice).
    younger(son,husband).
    younger(daughter,alice).
    younger(daughter,husband).

    iskiller(X,Y):-
        not(alone(X)),
        younger(X,Y),
        not(not_at_beach(X,Y)),
        not(not_at_bar(X,Y)).
  
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Milind Mishra
Milind Mishra author of Prolog problem of murder mystory is from India.
 
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John Snow from India Comment on: Sep 30
can you tell us who the killer is and what exactly is the valid goal?

Adnan Abushahad from Iraq Comment on: Jan 30
I thinks there are some errors in the code .. I'll analyze it and run it then i'll be back for discussion.

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