Instance EqDec_statement: EqDec statement := eq_dec_statement.
Instance EqDec_external_function: EqDec external_function := eq_dec_external_function.

Lemma safe_kseq_Slabel {Espec: OracleKind} psi n ora ve te l c k m :
@jsafeN (@OK_ty Espec) (@OK_spec Espec) psi n ora
(State ve te (@cons cont' (Kseq c) k)) m ->
@jsafeN (@OK_ty Espec) (@OK_spec Espec) psi n ora
(State ve te (@cons cont' (Kseq (Slabel l c)) k)) m.