Instance andp_imp_CCC: forall A {ND : NatDed A}, CCCviaNatDed A andp imp.
Instance sepcon_wand_CCC: forall A {ND : NatDed A} {SL: SepLog A}, CCCviaNatDed A sepcon wand.

Lemma modus_ponens_wand {A}{ND: NatDed A}{SL: SepLog A}:
forall P Q: A, derives (sepcon P (wand P Q)) Q.