Constraints induced by a terminated tree that matches
Theorem:
(defthm constraints-from-tree-match-cnl-wsp (implies (and (tree-match-element-p tree (!_ (/_ *c-nl* *wsp*)) *grammar*) (tree-terminatedp tree)) (member-equal (car (tree->string tree)) (chars=>nats '(#\Return #\;)))) :rule-classes nil)