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Unreachability-config

Unreachability-config-p

Recognizer for unreachability-config structures.

Signature
(unreachability-config-p x) → *

Definitions and Theorems

Function: unreachability-config-p

(defun unreachability-config-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'unreachability-config-p))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :unreachability-config)
         (mbe :logic (and (alistp (cdr x))
                          (equal (strip-cars (cdr x)) 'nil))
              :exec (fty::alist-with-carsp (cdr x) 'nil))
         (b* nil t))))

Theorem: consp-when-unreachability-config-p

(defthm consp-when-unreachability-config-p
  (implies (unreachability-config-p x)
           (consp x))
  :rule-classes :compound-recognizer)