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557a17a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | expression_not_var(Variable2) :-
not(variable_name(Variable2)),
expression_not_var1(Variable2,start).
expression_not_var1(Variable1,_) :-
single_item_not_var(Variable1),!.
expression_not_var1([],_) :- !.
expression_not_var1(Variable1,Position) :-
(Position=start->not(variable_name(Variable1));true),
Variable1=[Variable1a|Variable1b],
not(variable_name(Variable1a)),
expression_not_var1(Variable1a,start),
expression_not_var1(Variable1b,non_start),!.
single_item_not_var(A) :- predicate_or_rule_name(A),!.
single_item_not_var(A) :- string(A),!.
single_item_not_var(A) :- number(A),!.
single_item_not_var(A) :- atom(A),!.
single_item_not_var(A) :- blob(A,stream),!.
single_item_or_var(A) :- predicate_or_rule_name(A),!.
single_item_or_var(A) :- variable_name(A),!.
single_item_or_var(A) :- string(A),!.
single_item_or_var(A) :- number(A),!.
single_item_or_var(A) :- atom(A),!.
single_item_or_var(A) :- blob(A,stream),!.
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