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• Std/basic
• Fix

Std/basic/fix

Rules about fix.

Definitions and Theorems

Theorem: fix-when-acl2-numberp

(defthm fix-when-acl2-numberp
  (implies (acl2-numberp x)
           (equal (fix x) x)))

Theorem: acl2-numberp-of-fix

(defthm acl2-numberp-of-fix
  (acl2-numberp (fix x)))