Apply the logical AND.
This function performs a logical AND to the expression that precedes it. If both statements return T (true), the and function returns T. If either or both of the statements returns nil (false) the and function returns nil.
Examples
| Code | Returns |
|---|---|
| (setq d 9) (and (> d 12) (< d 13)) |
nil |
| (setq d 12.25) (and (> d 12) (< d 13)) |
T |
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(boole function integer1 integer2 ...)
Programming Overview of LISP (LISt Processing) Language
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