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Representation-of-integer-operations

Gt-ullong-ullong

Greater-than relation of a value of type unsigned long long and a value of type unsigned long long [C:6.5.8].

Definitions and Theorems

Function: gt-ullong-ullong

(defun gt-ullong-ullong (x y)
  (declare (xargs :guard (and (ullongp x) (ullongp y))))
  (if (> (integer-from-ullong x)
         (integer-from-ullong y))
      (sint-from-integer 1)
    (sint-from-integer 0)))

Theorem: sintp-of-gt-ullong-ullong

(defthm sintp-of-gt-ullong-ullong
  (sintp (gt-ullong-ullong x y)))

Theorem: gt-ullong-ullong-of-ullong-fix-x

(defthm gt-ullong-ullong-of-ullong-fix-x
  (equal (gt-ullong-ullong (ullong-fix x) y)
         (gt-ullong-ullong x y)))

Theorem: gt-ullong-ullong-ullong-equiv-congruence-on-x

(defthm gt-ullong-ullong-ullong-equiv-congruence-on-x
  (implies (ullong-equiv x x-equiv)
           (equal (gt-ullong-ullong x y)
                  (gt-ullong-ullong x-equiv y)))
  :rule-classes :congruence)

Theorem: gt-ullong-ullong-of-ullong-fix-y

(defthm gt-ullong-ullong-of-ullong-fix-y
  (equal (gt-ullong-ullong x (ullong-fix y))
         (gt-ullong-ullong x y)))

Theorem: gt-ullong-ullong-ullong-equiv-congruence-on-y

(defthm gt-ullong-ullong-ullong-equiv-congruence-on-y
  (implies (ullong-equiv y y-equiv)
           (equal (gt-ullong-ullong x y)
                  (gt-ullong-ullong x y-equiv)))
  :rule-classes :congruence)