Inferring generic types with functional composition

Question

Suppose I want to implement a functional composition, like this:

    public Func Compose(Func f, Func g)
    {
            


        

Answer 1

Adding to lasseespeholt's answer, if you define Compose as an extension method (renamed "Then" so that the result makes more sense):

public static Func Then(this Func f, Func g)
{
    return x => g(f(x));
}

you can make this fluent:

var h = toUpper.Then(replicate); // .Then(trim) etc...