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Package-name

Package-namep

Recognizer for package-name structures.

Signature
(package-namep x) → *

Definitions and Theorems

Function: package-namep

(defun package-namep (x)
  (declare (xargs :guard t))
  (let ((__function__ 'package-namep))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :package-name)
         (true-listp (cdr x))
         (eql (len (cdr x)) 1)
         (b* ((identifiers (std::da-nth 0 (cdr x))))
           (identifier-listp identifiers)))))

Theorem: consp-when-package-namep

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