Hint Resolve closed_wrt_tc_nosignedover : closed.

Lemma closed_wrt_tc_nobinover:
forall op {CS: compspecs} S e1 e2,
closed_wrt_vars S (eval_expr e1) ->
closed_wrt_vars S (eval_expr e2) ->
closed_wrt_vars S (denote_tc_assert (tc_nobinover op e1 e2)).