Disambiguation between
Theorem:
(defthm fail-bin-val-when-match-dec/hex-val (implies (and (tree-match-element-p tree element *grammar*) (member-equal element (list (element-rulename *dec-val*) (element-rulename *hex-val*))) (tree-terminatedp tree)) (mv-nth 0 (parse-bin-val (append (tree->string tree) rest-input)))))