premise: The Penibaetic System is the northernmost of the three systems of mountain ranges in the Iberian Peninsula.
hypothesis: The Penibaetic System ( Sistema Penibético or Cordillera Penibética ) is the southernmost of the three systems of mountain ranges of the Baetic System in the southern Iberian Peninsula . The Subbaetic or Sub-Baetic System ( Sistema Subbético or Cordillera Subbética ) is one of the three systems of mountain ranges of the Baetic System in the southern Iberian Peninsula .