public static QueryElOperator <int> Plus(this QueryElMemberStruct <int> firstSummand, QueryElMemberStruct <int> secondSummand) { return(new QueryElOperator <int>("({0} + {1})", firstSummand, secondSummand)); }
public static QueryElOperator <int> Minus(this QueryElMemberStruct <int> minuend, QueryElMemberStruct <int> subtrahend) { return(new QueryElOperator <int>("({0} - {1})", minuend, subtrahend)); }