| sk0 ∈ sks0, ∀ r, st. (∀ sk. sk ∈ sks0 → goodfieldandtype(r, sk, st)) → goodfieldsandtypes(r, sks0, st), ∀ sk0. sk0 = sk ∨ sk0 ∈ sks0 → goodfieldandtype(r, sk0, st) ⊦ goodfieldsandtypes(r, sks0, st), goodfieldandtype(r, sk0, st) |
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (sk0)]]