		Search-engine friendly clone of the ACL2 documentation.

Extdecl

Extdeclp

Recognizer for extdecl structures.

Signature
(extdeclp x) → *

Definitions and Theorems

Function: extdeclp

(defun extdeclp (x)
  (declare (xargs :guard t))
  (and (consp x)
       (cond ((or (atom x) (eq (car x) :fundef))
              (and (b* ((unwrap (cdr x)))
                     (fundefp unwrap))))
             ((eq (car x) :decl)
              (and (b* ((unwrap (cdr x))) (declp unwrap))))
             ((eq (car x) :empty)
              (and (eq (cdr x) nil) (b* nil t)))
             (t (and (eq (car x) :asm)
                     (and)
                     (b* ((unwrap (cdr x)))
                       (asm-stmtp unwrap)))))))

Theorem: consp-when-extdeclp

(defthm consp-when-extdeclp
  (implies (extdeclp x) (consp x))
  :rule-classes :compound-recognizer)