Haskell List Extensions for C#

HaskellListExtensions.cs

/// <summary>
/// Extends IEnumerable Types to provide the basic
/// Haskell-like list manipulations
/// </summary>
public static class HaskellListExtensions {
    
    /// <summary>
    /// Returns the first item of a list
    /// </summary>
    public static T Head<T>(this IEnumerable<T> xs) {
        return xs.First();
    }

    /// <summary>
    /// Returns all list items except the first
    /// </summary>
    public static IEnumerable<T> Tail<T>(this IEnumerable<T> xs) {
        return xs.Skip(1);
    }

    /// <summary>
    /// Returns the last item of a list
    /// </summary>
    public static T Last<T>(this IEnumerable<T> xs) {
        return xs.Last();
    }

    /// <summary>
    /// Returns all list items except for the last
    /// </summary>
    public static IEnumerable<T> Init<T>(this IEnumerable<T> xs) {
        return xs.Take(xs.Count() - 1);
    }

}