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Irr-pnumber

An irrelevant preprocessing number.

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

Function: irr-pnumber

(defun irr-pnumber nil
  (declare (xargs :guard t))
  (pnumber-digit #\0))

Theorem: pnumberp-of-irr-pnumber

(defthm pnumberp-of-irr-pnumber
  (b* ((acl2::irr (irr-pnumber)))
    (pnumberp acl2::irr))
  :rule-classes :rewrite)