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• Fgl-syntactic-checker-binders

Check-bitp

FGL binder that checks whether X is syntactically a bit.

Signature

(check-bitp ans x) → *

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

Definitions and Theorems

Function: check-bitp

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

Theorem: check-bitp-implies-bitp

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