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Block-item

Block-item-kind

Get the kind (tag) of a block-item structure.

Signature
(block-item-kind x) → kind
Arguments: x — Guard (block-itemp x).

Definitions and Theorems

Function: block-item-kind$inline

(defun block-item-kind$inline (x)
  (declare (xargs :guard (block-itemp x)))
  (let ((__function__ 'block-item-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :declon))
                       :declon)
                      (t :stmt))
         :exec (car x))))

Theorem: block-item-kind-possibilities

(defthm block-item-kind-possibilities
  (or (equal (block-item-kind x) :declon)
      (equal (block-item-kind x) :stmt))
  :rule-classes
  ((:forward-chaining :trigger-terms ((block-item-kind x)))))