Representation of the
This governs low level arcana like how packed array arguments are passed to C.
This is an ordinary defenum.
Function:
(defun vl-dpispec-p (x) (declare (xargs :guard t)) (or (eq x ':vl-dpi) (eq x ':vl-dpi-c)))
Theorem: type-when-vl-dpispec-p
(defthm type-when-vl-dpispec-p (implies (vl-dpispec-p x) (if (symbolp x) (if (not (equal x 't)) (not (equal x 'nil)) 'nil) 'nil)) :rule-classes :compound-recognizer)