		Search-engine friendly clone of the ACL2 documentation.

Struct-declon

Struct-declon-kind

Get the kind (tag) of a struct-declon structure.

Signature
(struct-declon-kind x) → kind
Arguments: x — Guard (struct-declonp x).

Definitions and Theorems

Function: struct-declon-kind$inline

(defun struct-declon-kind$inline (x)
  (declare (xargs :guard (struct-declonp x)))
  (mbe :logic (cond ((eq (car x) :member) :member)
                    ((eq (car x) :statassert) :statassert)
                    (t :empty))
       :exec (car x)))

Theorem: struct-declon-kind-possibilities

(defthm struct-declon-kind-possibilities
  (or (equal (struct-declon-kind x) :member)
      (equal (struct-declon-kind x)
             :statassert)
      (equal (struct-declon-kind x) :empty))
  :rule-classes
  ((:forward-chaining :trigger-terms ((struct-declon-kind x)))))