1.7.43 CQL: Negations in WHERE Clauses

You can specify negations in CQL WHERE clauses e.g.

{[],
 se_lt_z :: [g-G, h-H, i-I],
 \+((G == 'A1', H == 'B1' ; G == 'D1', H == 'B3'))},

Note that, just like in Prolog, \+ is a unary operator hence the "double" brackets in the example above.