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 Description  
 Less than and Less than or equal to:  Symbols that describe a relationship in which the expression on the left is less than the expression on the right.
The expression x < 5 is read "x is less than 5." This means that x can equal any real number less than 5. x 5 is read "x is less than or equal to 5." In this case, x is equal to any real number less than 5 as well as the number 5.