A list is a chain of conses in which the car of each cons is an element of the list, and the cdr of each cons is either the next link in the chain or a terminating atom.
A proper list is a list terminated by the empty list. The empty list is a proper list, but is not a cons.
An improper list is a list that is not a proper list; that is, it is a circular list or a dotted list.
A dotted list is a list that has a terminating atom that is not the empty list. A non-nil atom by itself is not considered to be a list of any kind---not even a dotted list.
A circular list is a chain of conses that has no termination because some cons in the chain is the cdr of a later cons.
append last nbutlast rest butlast ldiff nconc revappend copy-alist list ninth second copy-list list* nreconc seventh eighth list-length nth sixth endp make-list nthcdr tailp fifth member pop tenth first member-if push third fourth member-if-not pushnew
Figure 14-3. Some defined names relating to lists.
14.1.2.1 Lists as Association Lists 14.1.2.2 Lists as Sets 14.1.2.3 General Restrictions on Parameters that must be ListsRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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