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Filepath-option-some

Filepath-option-some->val

Get the fty::val field from a filepath-option-some.

Signature
(filepath-option-some->val x) → fty::val
Arguments: x — Guard (filepath-optionp x).
Returns: fty::val — Type (filepathp fty::val).

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

Definitions and Theorems

Function: filepath-option-some->val$inline

(defun filepath-option-some->val$inline (x)
  (declare (xargs :guard (filepath-optionp x)))
  (declare (xargs :guard x))
  (let ((__function__ 'filepath-option-some->val))
    (declare (ignorable __function__))
    (mbe :logic (b* ((x (and x x))) (filepath-fix x))
         :exec x)))

Theorem: filepathp-of-filepath-option-some->val

(defthm filepathp-of-filepath-option-some->val
  (b* ((fty::val (filepath-option-some->val$inline x)))
    (filepathp fty::val))
  :rule-classes :rewrite)

Theorem: filepath-option-some->val$inline-of-filepath-option-fix-x

(defthm filepath-option-some->val$inline-of-filepath-option-fix-x
  (equal (filepath-option-some->val$inline (filepath-option-fix x))
         (filepath-option-some->val$inline x)))

Theorem: filepath-option-some->val$inline-filepath-option-equiv-congruence-on-x

(defthm
 filepath-option-some->val$inline-filepath-option-equiv-congruence-on-x
 (implies (filepath-option-equiv x x-equiv)
          (equal (filepath-option-some->val$inline x)
                 (filepath-option-some->val$inline x-equiv)))
 :rule-classes :congruence)

Theorem: filepath-option-some->val-when-wrong-kind

(defthm filepath-option-some->val-when-wrong-kind
  (implies (not x)
           (equal (filepath-option-some->val x)
                  (filepath-fix nil))))