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