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Plaintext-type

Plaintext-type-kind

Get the kind (tag) of a plaintext-type structure.

Signature
(plaintext-type-kind x) → kind
Arguments: x — Guard (plaintext-typep x).

Definitions and Theorems

Function: plaintext-type-kind$inline

(defun plaintext-type-kind$inline (x)
  (declare (xargs :guard (plaintext-typep x)))
  (let ((__function__ 'plaintext-type-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :literal))
                       :literal)
                      (t :interface))
         :exec (car x))))

Theorem: plaintext-type-kind-possibilities

(defthm plaintext-type-kind-possibilities
  (or (equal (plaintext-type-kind x) :literal)
      (equal (plaintext-type-kind x)
             :interface))
  :rule-classes
  ((:forward-chaining :trigger-terms ((plaintext-type-kind x)))))