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Decl

Decl-p

Recognizer for decl structures.

Signature
(decl-p x) → *

Definitions and Theorems

Function: decl-p

(defun decl-p (x)
  (declare (xargs :guard t))
  (let ((acl2::__function__ 'decl-p))
    (declare (ignorable acl2::__function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x) '(name type)))
              :exec (fty::alist-with-carsp x '(name type)))
         (b* ((name (cdr (std::da-nth 0 x)))
              (type (cdr (std::da-nth 1 x))))
           (and (symbolp name)
                (hint-pair-p type)
                (symbolp (hint-pair->thm type)))))))

Theorem: consp-when-decl-p

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