Get the kind (tag) of a fgl-binder-rune structure.
(fgl-binder-rune-kind x) → kind
Function:
(defun fgl-binder-rune-kind$inline (x) (declare (xargs :guard (fgl-binder-rune-p x))) (let ((__function__ 'fgl-binder-rune-kind)) (declare (ignorable __function__)) (mbe :logic (cond ((or (atom x) (eq (car x) :brewrite)) :brewrite) ((eq (car x) :bformula) :bformula) (t :bmeta)) :exec (car x))))
Theorem:
(defthm fgl-binder-rune-kind-possibilities (or (equal (fgl-binder-rune-kind x) :brewrite) (equal (fgl-binder-rune-kind x) :bformula) (equal (fgl-binder-rune-kind x) :bmeta)) :rule-classes ((:forward-chaining :trigger-terms ((fgl-binder-rune-kind x)))))