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Pexprs-gout

Pexprs-goutp

Recognizer for pexprs-gout structures.

Signature
(pexprs-goutp x) → *

Definitions and Theorems

Function: pexprs-goutp

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

Theorem: consp-when-pexprs-goutp

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