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| ANSI Common Lisp 10 Symbols 10.2 Dictionary of Symbols
10.2.18 makunbound | Function
  Syntax: makunbound symbol symbol Arguments and Values: symbol - a symbol Description: Makes the symbol be unbound, regardless of whether it was previously bound. Examples:
       (setf (symbol-value 'a) 1)
       (boundp 'a)  true
       a  1
       (makunbound 'a)   A
       (boundp 'a)  false
Side Effects: The value cell of symbol is modified. Exceptional Situations: Should signal an error of type type-error if symbol is not a symbol. See Also: boundp, fmakunbound Allegro CL Implementation Details: None.

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