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Eoutcome

Eoutcomep

Recognizer for eoutcome structures.

Signature
(eoutcomep x) → *

Definitions and Theorems

Function: eoutcomep

(defun eoutcomep (x)
  (declare (xargs :guard t))
  (let ((__function__ 'eoutcomep))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :eoutcome)
         (mbe :logic (and (alistp (cdr x))
                          (equal (strip-cars (cdr x))
                                 '(cstate values)))
              :exec (fty::alist-with-carsp (cdr x)
                                           '(cstate values)))
         (b* ((cstate (cdr (std::da-nth 0 (cdr x))))
              (values (cdr (std::da-nth 1 (cdr x)))))
           (and (cstatep cstate)
                (value-listp values))))))

Theorem: consp-when-eoutcomep

(defthm consp-when-eoutcomep
  (implies (eoutcomep x) (consp x))
  :rule-classes :compound-recognizer)