Unary plus of a value of type
Function:
(defun plus-uchar (x) (declare (xargs :guard (and (ucharp x)))) (plus-sint (sint-from-uchar x)))
Theorem:
(defthm sintp-of-plus-uchar (sintp (plus-uchar x)))
Theorem:
(defthm plus-uchar-of-uchar-fix-x (equal (plus-uchar (uchar-fix x)) (plus-uchar x)))
Theorem:
(defthm plus-uchar-uchar-equiv-congruence-on-x (implies (uchar-equiv x x-equiv) (equal (plus-uchar x) (plus-uchar x-equiv))) :rule-classes :congruence)