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Irr-desiniter

An irrelevant initializer with optional designation.

This can be used as a dummy value of the type.

Function: irr-desiniter

(defun irr-desiniter nil
  (declare (xargs :guard t))
  (make-desiniter :designors nil
                  :initer (irr-initer)))

Theorem: desiniterp-of-irr-desiniter

(defthm desiniterp-of-irr-desiniter
  (b* ((acl2::irr (irr-desiniter)))
    (desiniterp acl2::irr))
  :rule-classes :rewrite)