module To_tptp:sig..end
exception Error of string
val conv_form : FO.T.t -> FO_tptp.formError if conversion failedval conv_statement : (FO.T.t, FO.Ty.t) FO.statement -> FO_tptp.statement optionError if conversion failedval conv_problem : (FO.T.t, FO.Ty.t) FO.Problem.t -> FO_tptp.problem