Section believe_monotonicity.
Context {CS: compspecs} {Espec: OracleKind}.
End believe_monotonicity.

Lemma semax_mono {CS} Espec Delta Delta' P Q
(SUB: tycontext_sub Delta Delta') c w
(Hyp: @semax' CS Espec Delta P c Q w):
@semax' CS Espec Delta' P c Q w.