Recognizer for candidate-assign structures.
(candidate-assign-p x) → *
Function:
(defun candidate-assign-p (x) (declare (xargs :guard t)) (let ((__function__ 'candidate-assign-p)) (declare (ignorable __function__)) (and (std::prod-consp x) (b* ((edge (std::prod-car x)) (?val (std::prod-cdr x))) (cgraph-edge-p edge)))))