I was wondering, I am aware you can use assert to add facts or rules or whatever if you have declared the predicate to be -:dynamic, but this only allows the changes that are made to be kept in that session only, e.g. if you close the prolog window then the database changes are lost.

So I was wondering, is there any way of making it so that the assert and retract predicates can make permanent changes to the prolog .pl file?

Thanks