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Plexeme-block-comment

Plexeme-block-comment->content

Get the content field from a plexeme-block-comment.

Signature
(plexeme-block-comment->content x) → content
Arguments: x — Guard (plexemep x).
Returns: content — Type (nat-listp content).

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

Definitions and Theorems

Function: plexeme-block-comment->content$inline

(defun plexeme-block-comment->content$inline (x)
  (declare (xargs :guard (plexemep x)))
  (declare (xargs :guard (equal (plexeme-kind x)
                                :block-comment)))
  (mbe :logic
       (b* ((x (and (equal (plexeme-kind x) :block-comment)
                    x)))
         (nat-list-fix (std::da-nth 0 (cdr x))))
       :exec (std::da-nth 0 (cdr x))))

Theorem: nat-listp-of-plexeme-block-comment->content

(defthm nat-listp-of-plexeme-block-comment->content
  (b* ((content (plexeme-block-comment->content$inline x)))
    (nat-listp content))
  :rule-classes :rewrite)

Theorem: plexeme-block-comment->content$inline-of-plexeme-fix-x

(defthm plexeme-block-comment->content$inline-of-plexeme-fix-x
  (equal (plexeme-block-comment->content$inline (plexeme-fix x))
         (plexeme-block-comment->content$inline x)))

Theorem: plexeme-block-comment->content$inline-plexeme-equiv-congruence-on-x

(defthm
 plexeme-block-comment->content$inline-plexeme-equiv-congruence-on-x
 (implies (plexeme-equiv x x-equiv)
          (equal (plexeme-block-comment->content$inline x)
                 (plexeme-block-comment->content$inline x-equiv)))
 :rule-classes :congruence)

Theorem: plexeme-block-comment->content-when-wrong-kind

(defthm plexeme-block-comment->content-when-wrong-kind
  (implies (not (equal (plexeme-kind x) :block-comment))
           (equal (plexeme-block-comment->content x)
                  (nat-list-fix nil))))