public void Test05()
{
var mString = from m in Monoid.make <string>()
let combine = Monoid.combine(seq("1", "2", "3", "4", "5"), m)
select combine;
claim.equal("12345", mString);
}
public void Test01()
{
var mInt = from m in Monoid.make <int>()
let combine = Monoid.combine(seq(1, 2, 3, 4, 5), m)
select combine;
claim.equal(15, mInt);
}