C# (CSharp) Arg.FreeVars примеры использования

Пример #1

        public override MSet <string> FreeVars()
        {
            var set1 = Expr.FreeVars();
            var set2 = Arg.FreeVars();

            return(set1.Union(set2));
        }

Пример #2

 public override MSet <string> FreeVars()
 {
     return(Arg.FreeVars());
 }