Understanding the clause/2 predicate

StackOverflow https://stackoverflow.com/questions/5953899

  •  07-11-2019
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Question

I'm currently trying to learn some Prolog (using ECLiPSe). From time to time I come across the clause/2 predicate, but I fail to understand what it is used for. I read some references (e.g. this one), but I still don't get in what case it could be useful. Can someone provide me with an easy example or explanation of this?

No correct solution

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