Model theory is a branch of mathematical logic that deals with the relationship between formal languages (which consist of symbols and rules for combining them) and their interpretations or models. It focuses on understanding the structures that satisfy given logical formulas, and it examines the properties and relationships between those structures. Here are some key concepts in model theory: 1. **Structures**: A structure consists of a set, called the universe, along with operations, relations, and constants defined on that set.
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