		Search-engine friendly clone of the ACL2 documentation.

Expr-gout

Expr-goutp

Recognizer for expr-gout structures.

Signature
(expr-goutp x) → *

Definitions and Theorems

Function: expr-goutp

(defun expr-goutp (x)
 (declare (xargs :guard t))
 (let ((__function__ 'expr-goutp))
  (declare (ignorable __function__))
  (and
   (mbe
      :logic (and (alistp x)
                  (equal (strip-cars x)
                         '(expr type term events
                                thm-name thm-index names-to-avoid)))
      :exec (fty::alist-with-carsp
                 x
                 '(expr type term events
                        thm-name thm-index names-to-avoid)))
   (b* ((expr (cdr (std::da-nth 0 x)))
        (type (cdr (std::da-nth 1 x)))
        (term (cdr (std::da-nth 2 x)))
        (events (cdr (std::da-nth 3 x)))
        (thm-name (cdr (std::da-nth 4 x)))
        (thm-index (cdr (std::da-nth 5 x)))
        (names-to-avoid (cdr (std::da-nth 6 x))))
     (and (exprp expr)
          (typep type)
          (pseudo-termp term)
          (pseudo-event-form-listp events)
          (symbolp thm-name)
          (posp thm-index)
          (symbol-listp names-to-avoid))))))

Theorem: consp-when-expr-goutp

(defthm consp-when-expr-goutp
  (implies (expr-goutp x) (consp x))
  :rule-classes :compound-recognizer)