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Eval-state

Eval-state-kind

Get the kind (tag) of a eval-state structure.

Signature
(eval-state-kind x) → kind
Arguments: x — Guard (eval-state-p x).

Definitions and Theorems

Function: eval-state-kind$inline

(defun eval-state-kind$inline (x)
  (declare (xargs :guard (eval-state-p x)))
  (let ((__function__ 'eval-state-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :init)) :init)
                      ((eq (car x) :trans) :trans)
                      ((eq (car x) :final) :final)
                      (t :error))
         :exec (car x))))

Theorem: eval-state-kind-possibilities

(defthm eval-state-kind-possibilities
  (or (equal (eval-state-kind x) :init)
      (equal (eval-state-kind x) :trans)
      (equal (eval-state-kind x) :final)
      (equal (eval-state-kind x) :error))
  :rule-classes
  ((:forward-chaining :trigger-terms ((eval-state-kind x)))))