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• Fgl-syntactic-checker-binders

Check-integerp

FGL binder that checks whether X is syntactically an integer.

Signature

(check-integerp ans x) → *

See fgl-syntactic-checker-binders and see binder for details.

Definitions and Theorems

Function: check-integerp

(defun check-integerp (ans x)
  (declare (xargs :guard t))
  (let ((__function__ 'check-integerp))
    (declare (ignorable __function__))
    (and (integerp x) ans t)))

Theorem: check-integerp-implies-integerp

(defthm check-integerp-implies-integerp
  (implies (check-integerp ans x)
           (integerp x))
  :rule-classes :forward-chaining)