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| ANSI Common Lisp 12 Numbers 12.2 Dictionary of Numbers
12.2.44 numberp | Function
  Syntax: numberp object generalized-boolean Arguments and Values: object - an object. generalized-boolean - a generalized boolean. Description: Returns true if object is of type number; otherwise, returns false. Examples:
       (numberp 12)  true
       (numberp (expt 2 130))  true
       (numberp #c(5/3 7.2))  true
       (numberp nil)  false
       (numberp (cons 1 2))  false
  Notes:
       (numberp object) ==(typep object 'number)
Allegro CL Implementation Details: None.

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