Hi All
I'm very confused about this issue and can't to underestand it.In the Enumerable Documentation, I readed this:

that implement System.Collections.Generic.IEnumerable

and some methods like Select() return IEnumerable that we can use from other methods like Where() after using that.for example:

names.Select(name => name).Where(name => name.Length > 3 );

but Enumerable doesn't inherits from IEnumerable and IEnumerable doesn't contain Select(),Where() and etc too...

have i wrong ?
or exists any reason for this?