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Std/system/function-queries

Fundef-disabledp

Check if the definition of a named function is disabled.

Signature
(fundef-disabledp fn state) → yes/no
Arguments: fn — Guard (symbolp fn).
Returns: yes/no — Type (booleanp yes/no).

Definitions and Theorems

Function: fundef-disabledp

(defun fundef-disabledp (fn state)
  (declare (xargs :stobjs (state)))
  (declare (xargs :guard (symbolp fn)))
  (let ((__function__ 'fundef-disabledp))
    (declare (ignorable __function__))
    (if (member-equal (cons ':definition (cons fn 'nil))
                      (disabledp fn))
        t
      nil)))

Theorem: booleanp-of-fundef-disabledp

(defthm booleanp-of-fundef-disabledp
  (b* ((yes/no (fundef-disabledp fn state)))
    (booleanp yes/no))
  :rule-classes :rewrite)