My aim is to dynamically generate some predicate p in code step by step in following form:
:- dynamic p/1.
get_next_element(N, N) :- not(p(N)), assert(p(N)), !.
get_next_element(N, O) :- p(N), M is N + 1, get_next_element(M, O).
get_next(N) :- get_next_element(0, N).
If I now replace the p tag by a tag illustrated by the contradiction symbol ⊥, in the code it means:
:- dynamic ⊥/1.
get_next_element(N) :- not(⊥(N)), assert(⊥(N)).
get_next_element(N) :- ⊥(N), M is N + 1, get_next_element(M).
get_next() :- get_next_element(0).
I get the following error on line :-dynamic ⊥/1:
Syntax error: Operator expected
Is their some way to deal with that problem, cause I can easily generate some static predicate eg. ⊥(N) :- N is 1.?