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Maybe-function-header

Maybe-function-headerp

Recognizer for maybe-function-header structures.

Signature
(maybe-function-headerp x) → *

Definitions and Theorems

Function: maybe-function-headerp

(defun maybe-function-headerp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'maybe-function-headerp))
    (declare (ignorable __function__))
    (cond ((not x) (b* nil t))
          (t (b* ((fty::val x))
               (function-headerp fty::val))))))