creates a new SchemaVariable. That is used as placeholder for
bound(quantified) variables.
Parameters: name - the Name of the SchemaVariable Parameters: sort - the Sort of the SchemaVariable and the matched type Parameters: listSV - a boolean which is true iff the schemavariable is allowedto match a list of quantified variables Parameters: strictSV - boolean indicating if the schemavariable is declared as strictforcing exact type match
returns true iff this SchemaVariable is used to match
bound (quantifiable) variables
true iff this SchemaVariable is used to matchbound (quantifiable) variables