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 Post subject: Logic and PrologPosted: Thu, 26 Nov 2009 23:49:09 UTC

Joined: Sun, 15 Nov 2009 21:19:02 UTC
Posts: 6
Hi, I have a question and have worked it out as below. Can you tell me if I am right.

Q. Let friend (x,y) denote 'x is a friend of y, man (x) 'x is a man' and woman (y) 'y is a woman'. Translate the following formulas into English sentences:

i) ∀x∃y friend(x,y)

Answer: Every man has atleast one woman friend.

ii) ∃x (man(x) ^ ∀y (friend(x,y) --> woman(y)))

Answer: For all friendship groups in the world, there is atleast one man and woman a friend.

Thanks and Regards
Jordan

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