![[HARLEQUIN]](../Graphics/Harlequin-Small.gif)
![[Common Lisp HyperSpec (TM)]](../Graphics/HyperSpec-Small.gif)
![[Previous]](../Graphics/Prev.gif)
![[Up]](../Graphics/Up.gif)
![[Next]](../Graphics/Next.gif)
Other, implementation-defined packages might be present in the initial Common Lisp environment.
It is recommended, but not required, that the documentation for a conforming implementation contain a full list of all package names initially present in that implementation but not specified in this specification. (See also the function list-all-packages.)
![[Starting Points]](../Graphics/Starting-Points.gif)
![[Contents]](../Graphics/Contents.gif)
![[Index]](../Graphics/Index.gif)
![[Symbols]](../Graphics/Symbols.gif)
![[Glossary]](../Graphics/Glossary.gif)
![[Issues]](../Graphics/Issues.gif)