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Constraint-rule

Constraint-rule-p

Recognizer for constraint-rule structures.

Signature
(constraint-rule-p x) → *

Definitions and Theorems

Function: constraint-rule-p

(defun constraint-rule-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'constraint-rule-p))
    (declare (ignorable __function__))
    (and (consp x)
         (consp (cdr x))
         (b* ((thmname (car x))
              (lit-alist (car (cdr x)))
              (syntaxp (cdr (cdr x))))
           (and (symbolp thmname)
                (pseudo-term-subst-p lit-alist)
                (pseudo-termp syntaxp))))))

Theorem: consp-when-constraint-rule-p

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