learn1: Begins the process of finding a rule for the current class and then tests that rule.
	Requires Lisp functions format,setf,if

chop: Keeps only the first few rules in the current list of possible rules
	Requires lisp functions dotimes, setf, aref

beliefsreview: Prints the current list of possible rules.
	Requires lisp functions dolist, format 

combine: Combines a pair of rules so that no conditions are repeated and conditions are grouped based on feature
	Requires lisp functions dotimes, if, setf, incf, aref, concatenate, dolist

score1: Computes the score of a rule based on the chosen chriterion
	Requires lisp functions cond, *,+,/

one: Returns a random item from an array
	Requires lisp functions nth, length, random

most: Returns the greatest value in an array.
	Requires lisp functions let, setf, if, dolist

o: Prints a sorted array.
	Requires lisp functions format, if, setf