Pascal Bourguignon wrote:
> Bob Badour <bbadour@[EMAIL PROTECTED]
> writes:
>
>>Can it handle n-ary relations? Like "John bought 10 apples each at
>>10cents" ?
>
>
> Of course:
>
> bought(john,10,apple,10,cent).
>
> How many apple did john buy?
>
> ?- bought(john,HowMany,apple,_price,_money).
Thank you, that's much more revealing than 100 binary relations.
Does prolog summarize the results? Or does it list each individual
purchase?
Consider:
bought(john,10,apple,10,cent).
bought(john,3,apple,15,cent).
?- bought(john,HowMany,apple,_price,_money).
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