ℛ n  ( S ′  ) = ℛ ( S ′  ) − W min ⁡    W max ⁡   − W min ⁡     ≥ λ ⇒ ℛ ( S ′  ) ≥ λ ( W max ⁡   − W min ⁡   ) + W min ⁡   = λ n    MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBamrtHrhAL1wy0L2yHvtyaeHbnfgDOvwBHrxAJfwnaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=vr0dc8meaabaqaciaacaGaaeqabaWaaeGaeaaakeaaimaacqWFBeIudaahaaWcbeqaaiabd6gaUbaakiabcIcaOiqbdofatzaafaGaeiykaKIaeyypa0ZaaSaaaeaacqWFBeIucqGGOaakcuWGtbWugaqbaiabcMcaPiabgkHiTiab=zr8xnaaCaaaleqabaGagiyBa0MaeiyAaKMaeiOBa4gaaaGcbaGae8NfXF1aaWbaaSqabeaacyGGTbqBcqGGHbqycqGG4baEaaGccqGHsislcqWFwe=vdaahaaWcbeqaaiGbc2gaTjabcMgaPjabc6gaUbaaaaGccqGHLjYScqaH7oaBcqGHshI3cqWFBeIucqGGOaakcuWGtbWugaqbaiabcMcaPiabgwMiZkabeU7aSjabcIcaOiab=zr8xnaaCaaaleqabaGagiyBa0MaeiyyaeMaeiiEaGhaaOGaeyOeI0Iae8NfXF1aaWbaaSqabeaacyGGTbqBcqGGPbqAcqGGUbGBaaGccqGGPaqkcqGHRaWkcqWFwe=vdaahaaWcbeqaaiGbc2gaTjabcMgaPjabc6gaUbaakiabg2da9iabeU7aSnaaCaaaleqabaGaemOBa4gaaaaa@7D84@