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Atj-function-type

Atj-function-type-p

Recognizer for atj-function-type structures.

Signature
(atj-function-type-p x) → *

Definitions and Theorems

Function: atj-function-type-p

(defun atj-function-type-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'atj-function-type-p))
    (declare (ignorable __function__))
    (and (true-listp x)
         (eql (len x) 3)
         (b* ((inputs (std::da-nth 0 x))
              (outputs (std::da-nth 1 x))
              (arrays (std::da-nth 2 x)))
           (and (atj-type-listp inputs)
                (atj-type-listp outputs)
                (symbol-listp arrays))))))

Theorem: consp-when-atj-function-type-p

(defthm consp-when-atj-function-type-p
  (implies (atj-function-type-p x)
           (consp x))
  :rule-classes :compound-recognizer)