Nonetheless, the interplay of classes of models and the sets definable in them has been crucial to the development of model theory throughout its history. For instance, while stability was originally introduced to classify theories by their numbers of models in a given cardinality, stability theory proved crucial to understanding the geometry of definable sets.
Nonetheless the interplay of classes of models and the sets definable in them has been crucial to the development of model theory throughout its history For instance while stability was originally introduced to classify theories by their numbers of models in a given cardinality stability theory proved crucial to understanding the geometry of definable sets