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