		Search-engine friendly clone of the ACL2 documentation.

Keyword-uscores

Keyword-uscores-kind

Get the kind (tag) of a keyword-uscores structure.

Signature
(keyword-uscores-kind x) → kind
Arguments: x — Guard (keyword-uscores-p x).

Definitions and Theorems

Function: keyword-uscores-kind$inline

(defun keyword-uscores-kind$inline (x)
  (declare (xargs :guard (keyword-uscores-p x)))
  (mbe :logic (cond ((or (atom x) (eq (car x) :none)) :none)
                    ((eq (car x) :start) :start)
                    (t :both))
       :exec (car x)))

Theorem: keyword-uscores-kind-possibilities

(defthm keyword-uscores-kind-possibilities
  (or (equal (keyword-uscores-kind x) :none)
      (equal (keyword-uscores-kind x) :start)
      (equal (keyword-uscores-kind x) :both))
  :rule-classes
  ((:forward-chaining :trigger-terms ((keyword-uscores-kind x)))))