Miscellaneous ============= .. _nil: nil --- Construct with no projections A value that signifies an optional value that has been omitted, an ordered comparison that resulted in equality, or an empty list. .. _yep: yep --- Construct with ``val`` A value that signifies a successful result, an optional value that is present, or an ordered comparison that determines the inputs were successfully in ascending order already. .. _nope: nope ---- Construct with ``val`` A value that signifies an unsuccessful result or an ordered comparison that determines the inputs were not successfully in ascending order already. .. _cons: cons ---- Construct with ``car cdr`` Represents a linked list with the indicated ``car`` as its head element and the indicated ``cdr`` as its linked list tail. .. _assoc: assoc ----- Construct with ``key val`` Represents a key-value pair. A linked list can have these as its elements to represent an ordered mapping known as an association list.