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Constraint

Constraint-kind

Get the kind (tag) of a constraint structure.

Signature
(constraint-kind x) → kind
Arguments: x — Guard (constraintp x).

Definitions and Theorems

Function: constraint-kind$inline

(defun constraint-kind$inline (x)
  (declare (xargs :guard (constraintp x)))
  (let ((__function__ 'constraint-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :equal))
                       :equal)
                      (t :relation))
         :exec (car x))))

Theorem: constraint-kind-possibilities

(defthm constraint-kind-possibilities
  (or (equal (constraint-kind x) :equal)
      (equal (constraint-kind x) :relation))
  :rule-classes
  ((:forward-chaining :trigger-terms ((constraint-kind x)))))