Functional Composition in C# ver. 2

FunctionalComposition.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace FunctionalComposition
{
    class FunctionalComposition
    {
        static void Main(string[] args)
        {
            var f = new Function<double, double>(Math.Exp);
            var g = new Function<double, double>(x => Math.Pow(x, 2));
            var h = new Function<double, double>(x => -x + 1);
            var composed = f.Compose(g).Compose(h);
            Console.WriteLine(composed.apply(10));
        }
    }

    class Function<T, TResult>
    {
        public Func<T, TResult> apply
        {
            get;
            protected set;
        }

        public Function(Func<T, TResult> apply)
        {
            this.apply = apply;
        }

        public Function<U, TResult> Compose<U>(Function<U, T> g)
        {
            return new Function<U, TResult>(x => apply(g.apply(x)));
        }
    }
}