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interpretstatement1(_F0,_Functions,[[not,Operator],[Variable1,Variable2]],Vars1,Vars2,true,nocut) :-
isop(Operator),
interpretpart(not_is,Variable1,Variable2,Vars1,Vars2),!.
interpretstatement1(_F0,_Functions,[[not,Operator],[Variable1,Variable2]],Vars1,Vars2,true,nocut) :-
comparisonoperator(Operator),
%%writeln1(4),
interpretpart(not_iscomparison,Operator,Variable1,Variable2,Vars1,Vars2).
interpretpart(not_is,Variable1,Variable2,Vars1,Vars1) :-
getvalues(Variable1,Variable2,Value1,Value2,Vars1),
not(isempty(Value1)),
not(isempty(Value2)),
%%writeln([call,[[not,=],[Value1,Value2]]]),
((not(Value1 = Value2)
)->
true%%writeln([exit,[[not,=],[Value1,Value2]]])
; fail)%%writeln([fail,[[not,=],[Value1,Value2]]]))
,!.
interpretpart(not_iscomparison,Operator,Variable1,Variable2,Vars1,Vars1) :- getvalues(Variable1,Variable2,Value1,Value2,Vars1),
%%writeln([call,[[not,=],[Value1,Value2]]]),
((isval(Value1),
isval(Value2),
Expression=..[Operator,Value1,Value2],
not(Expression))->
true%%writeln([exit,[[not,=],[Value1,Value2]]])
; fail)%%writeln([fail,[[not,=],[Value1,Value2]]]))
,!.
isempty(N) :-
N=empty.
comparisonoperator(>).
comparisonoperator(>=).
comparisonoperator(<).
comparisonoperator(=<).
%%comparisonoperator(=).
comparisonoperator(=\=).
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