James Gray wrote:
> If it doesn't need a require, it's core.  If it does need a require  
> but the library comes with Ruby, it's a standard library.
> Hope that helps.

It isn't the point.

The point is that resources like ri, qri, search everything, not just core,
so there's no effective way to browse the core APIs looking for what you
need.

Why does <http://ruby-doc.org/core/> contains all the standard libraries
as well as core? Surely this is plain wrong?

Clifford Heath.