		Search-engine friendly clone of the ACL2 documentation.

Command

Command-kind

Get the kind (tag) of a command structure.

Signature
(command-kind x) → kind
Arguments: x — Guard (commandp x).

Definitions and Theorems

Function: command-kind$inline

(defun command-kind$inline (x)
  (declare (xargs :guard (commandp x)))
  (let ((__function__ 'command-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :increment))
                       :increment)
                      ((eq (car x) :decrement) :decrement)
                      (t :instruction))
         :exec (car x))))

Theorem: command-kind-possibilities

(defthm command-kind-possibilities
  (or (equal (command-kind x) :increment)
      (equal (command-kind x) :decrement)
      (equal (command-kind x) :instruction))
  :rule-classes
  ((:forward-chaining :trigger-terms ((command-kind x)))))