Negative Polarity Items in Formal Semantics

Why do certain words only make sense in negative contexts, and how does the human mind process these subtle linguistic rules? Understanding Negative Polarity Items (NPIs) is one of the most revealing ways to study the underlying structure of human language. This text-based course guides you through the foundational theories of formal semantics, showing you how these small words unlock deep insights into how we construct meaning. By reading through clear explanations and analyzing linguistic data, you will learn to map the hidden logical properties of grammar. You will transition from identifying basic polarity patterns to working with advanced semantic frameworks used by professional linguists today. What you'll learn: - Understand the core grammatical properties of Negative Polarity Items and Free Choice Items. - Analyze classic and modern licensing theories, including downward-entailing environments and modern exhaustification approaches. - Explore how NPIs interact with focus, presupposition, and quantification in natural language. - Examine the semantic role of modals, questions, superlatives, and conditional clauses in licensing these items. - Apply formal semantic analysis to real-world linguistic datasets through targeted written exercises. The course begins with key terminology, basic definitions of polarity, and the logical foundations of entailment. From there, you will progress to examining complex grammatical interactions, modern semantic frameworks, and cross-linguistic variations. This course is designed for beginners in linguistics, cognitive science, or the philosophy of language who want to build a strong foundation in formal semantics. No previous background in advanced mathematical logic is required. Start exploring the hidden logic of natural language today.