An irrelevant member.
(irr-member) → acl2::irr
This can be used as a dummy value of the type.
Function:
(defun irr-member nil (declare (xargs :guard t)) (let ((__function__ 'irr-member)) (declare (ignorable __function__)) (make-member :name "" :value (irr-value))))
Theorem:
(defthm memberp-of-irr-member (b* ((acl2::irr (irr-member))) (memberp acl2::irr)) :rule-classes :rewrite)