On 1/4/09, Dieter Kaiser <drdieterkaiser at web.de> wrote: > In CLISP the expression (functionp (lambda (x y) ... )) gives always NIL and not > T as is expected. Hmm, Clisp 2.46 on Linux, in the following program, (H) yields T (interpreted or compiled). Robert PS. (defvar g (lambda (x) (1+ x))) (defun f (x) (functionp x)) (defun h () (f g))