Hi,
Digging through some code I came to this code definition for the EF ObjectSet class:

public class ObjectSet<TEntity> : ObjectQuery<TEntity>, IObjectSet<TEntity>, IQueryable<TEntity>, IEnumerable<TEntity>, IQueryable, IEnumerable where TEntity : class {}

Since IQueryable implements IEnumerable I don't see why the latter is explicitly listed. Is it just superflous or am I missing some subtlety ?