Preface -- 1 - Fundamentals -- 2 - Matters of Aspect -- 3 - Modes of Implication -- 4 - Conditional Complications -- 5 - Doxastic Implication and Plausibility -- 6 - Inferentially Insuperable Boundaries and Homogeneous Conditionals -- 7 - Counterfactual Conditionals and Their Problematic Nature -- 8 - Salience and Questioner's Prerogative -- 9 - On Validating Counterfactuals -- 10 - Further Complications of Counterfactuality -- 11 - Some Logical Features of Counterfactuals -- 12 - Variant Analyses of Counterfactuals -- 13 - Historical Counterfactuals -- 14 - Per impossibile Counterfactuals and Reductio ad absurdum Conditionals -- 15 - Problems with Possible Worlds -- Conclusion -- Notes -- References -- Name Index.