Disambiguation between
Theorem:
(defthm fail-wsp-when-match-cwsp-and-restriction (implies (and (tree-match-element-p tree (element-rulename *c-wsp*) *grammar*) (tree-terminatedp tree) (tree-cwsp-restriction-p tree)) (mv-nth 0 (parse-wsp (append (tree->string tree) rest-input)))))