Get the kind (tag) of a univ-char-name structure.
(univ-char-name-kind x) → kind
Function:
(defun univ-char-name-kind$inline (x) (declare (xargs :guard (univ-char-name-p x))) (let ((__function__ 'univ-char-name-kind)) (declare (ignorable __function__)) (mbe :logic (cond ((or (atom x) (eq (car x) :locase-u)) :locase-u) (t :upcase-u)) :exec (car x))))
Theorem:
(defthm univ-char-name-kind-possibilities (or (equal (univ-char-name-kind x) :locase-u) (equal (univ-char-name-kind x) :upcase-u)) :rule-classes ((:forward-chaining :trigger-terms ((univ-char-name-kind x)))))