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+# List utilities
+
+- (cons 1 (cons 2 ())) -> (1 2) 
+
+cons produces a new cons cell (essentially a pair of two values). Cons cells (or pairs) form the basis of linked lists,
+and therefore all source code.
+
+- (car '(1 2 3 4)) -> 1
+
+car returns the first item of a cons cell.
+
+- (cdr '(1 2 3 4)) -> (2 3 4)
+
+cdr returns the second item of a cons cell.
+
+- (list 1 2 3 4) -> (1 2 3 4)
+
+list is a function takes any number of parameters, and produces a list containing only those elements in the order passed to it.