End KnotLemmas_CovariantHeredProp.
Module Knot_MixVariantHeredProp (KI':KNOT_INPUT__MIXVARIANT_HERED_PROP)
: KNOT__MIXVARIANT_HERED_PROP with Module KI:=KI'.
Module KI:=KI'.
Module Input.
Definition F: functor := KI.F.
Definition other := unit.
Definition Rel A := @eq (F A).

Lemma Rel_refl : forall A x, Rel A x x.