Scieneer Common Lisp 1.3.9 online documentation constantp object &optional environment [Function] True of any Lisp object that has a constant value: types that eval to themselves, keywords, constants, and list whose car is quote.
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| constantp object &optional environment | [Function] |
True of any Lisp object that has a constant value: types that eval to themselves, keywords, constants, and list whose car is quote.