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