Preface.- 1. Negation in a cross-linguistic perspective.1.0 Introduction and overview.1.1 Negation in logic and language.1.2 Negation in typology and diachronic linguistics.1.3. Negative polarity.1.4 Negative concord: observations and issues.1.5 A polyadic quantifier analysis of double negation and negative concord.1.6 Negation and negative indefinites.1.7 Outline of the book.- 2. Expressive and interpretive optimization. 2.0 Introduction and overview...