Representation is the essence of parameters.GB's and MP's parametric explanations for typological differences and clustering effects are both based on representation.The universal representation mechanism is responsible for structure generation,and the particular representation arbitrates the well-formedness of syntactic derivation.Therefore,representation is not emergent,and it is closer to the optimal solution of Plato's problem than parameters and a parameter is an operation option triggered by representative well-formedness condition.The MP parameter theory uses function words'features as ...