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Std/system

Rune-enabledp

Check if a rune is enabled.

Signature
(rune-enabledp rune state) → yes/no
Arguments: rune — Guard (runep rune (w state)).
Returns: yes/no — Type (booleanp yes/no).

Definitions and Theorems

Function: rune-enabledp

(defun rune-enabledp (rune state)
  (declare (xargs :stobjs (state)))
  (declare (xargs :guard (runep rune (w state))))
  (let ((__function__ 'rune-enabledp))
    (declare (ignorable __function__))
    (not (rune-disabledp rune state))))

Theorem: booleanp-of-rune-enabledp

(defthm booleanp-of-rune-enabledp
  (b* ((yes/no (rune-enabledp rune state)))
    (booleanp yes/no))
  :rule-classes :rewrite)