		Search-engine friendly clone of the ACL2 documentation.

Package

Package->file

Get the file field from a package.

Signature
(package->file x) → file
Arguments: x — Guard (packagep x).
Returns: file — Type (filep file).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: package->file$inline

(defun package->file$inline (x)
  (declare (xargs :guard (packagep x)))
  (declare (xargs :guard t))
  (let ((__function__ 'package->file))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (file-fix (cdr (std::da-nth 0 (cdr x)))))
         :exec (cdr (std::da-nth 0 (cdr x))))))

Theorem: filep-of-package->file

(defthm filep-of-package->file
  (b* ((file (package->file$inline x)))
    (filep file))
  :rule-classes :rewrite)

Theorem: package->file$inline-of-package-fix-x

(defthm package->file$inline-of-package-fix-x
  (equal (package->file$inline (package-fix x))
         (package->file$inline x)))

Theorem: package->file$inline-package-equiv-congruence-on-x

(defthm package->file$inline-package-equiv-congruence-on-x
  (implies (package-equiv x x-equiv)
           (equal (package->file$inline x)
                  (package->file$inline x-equiv)))
  :rule-classes :congruence)