A character set for
Function:
(defun number-chars$inline nil (declare (xargs :guard t)) 287948901175001088)
Theorem:
(defthm charset-p-of-number-chars (charset-p (number-chars)))
Theorem:
(defthm char-in-charset-p-of-number-chars (equal (char-in-charset-p x (number-chars)) (number-char-p x)))