Disambiguation between
Theorem:
(defthm fail-cwsp-when-match-alt/conc/rep (implies (and (tree-match-element-p tree element *grammar*) (member-equal element (list (element-rulename *alternation*) (element-rulename *concatenation*) (element-rulename *repetition*))) (tree-terminatedp tree)) (mv-nth 0 (parse-cwsp (append (tree->string tree) rest-input)))))