Hi Alex and Henrik,
Thanks a lot, both of you! I'll keep playing with pilog.
The URL to the book I mentioned got some junk at the end. The correct
On 17-12-13 06:56 , Alexander Burger wrote:
pilog. The rule says that "Person is an author if there is a book Book and
Person wrote Book." Can pilog express rules like this?
It should be like
(be author (@Person)
(wrote @Person @Book) )