Preface; Contents; 1 Introduction; 1.1 Two Standard Logical Principles; 1.2 Some Problems; 1.3 Intensional Contexts and the Role of Intensional Logic; 1.4 Intensional Logics and Their Rivals; 1.5 Intensionality, Intentionality and Metaphysics; References; 2 Frege's Theory of Sinn and Bedeutung; 2.1 Frege's Puzzle, and the Theory of Sinn and Bedeutung; 2.2 Oblique Contexts; 2.3 The Adequacy of the Fregean Account; 2.4 Chapter Summary; References; 3 Church's Logic of Sense and Denotation; 3.1 Church's Criteria of Identity for Sinne; 3.2 The Logic of Sense and Denotation 3.3 The Adequacy of Church's Logic of Sense and Denotation3.4 Chapter Summary; References; 4 Carnap's Method of Extension and Intension; 4.1 Equivalence and L-Equivalence; 4.2 The Method of Extension and Intension; 4.3 The Adequacy of Carnap's Method of Extension and Intension; 4.4 Chapter Summary; References; 5 Montague's Possible-Worlds Approach; 5.1 The Possible-Worlds Approach; 5.2 The System IL; 5.3 The Adequacy of IL; 5.4 Chapter Summary; References; 6 Cresswell's Theory of Structured Meanings; 6.1 Structured Meanings; 6.2 Formal Semantics; 6.3 The Adequacy of Cresswell's Account 6.4 Chapter SummaryReferences; 7 Bealer's Theory of Properties, Relations and Propositions; 7.1 Properties, Relations and Propositions; 7.2 Algebraic Intensional Systems; 7.3 The Adequacy of Bealer's Algebraic Method; 7.4 Chapter Summary; References; 8 Zalta's Meinongian Approach; 8.1 The Meinongian Approach; 8.2 Zalta's Intensional Logic; 8.3 The Adequacy of Zalta's Intensional Logic; 8.4 Chapter Summary; References; 9 Priest's Noneist Approach; 9.1 Non-classical Worlds; 9.2 Priest's Non-classical Meinongianism; 9.3 The Adequacy of Priest's Account; 9.4 Chapter Summary; References 10 Quine's Sententialism10.1 Quine's Sententialist Analysis; 10.2 The Adequacy of Quine's Analysis; 10.3 Carnap Revisited; 10.4 Chapter Summary; References; 11 Davidson's Paratactic Approach; 11.1 Davidson's Paratactic Analysis; 11.2 The Adequacy of Davidson's Paratactic Analysis; 11.3 Some Further Problems; 11.4 Chapter Summary; References; 12 Scheffler's Inscriptionalism; 12.1 Scheffler's Inscriptionalist Analysis; 12.2 The Adequacy of Scheffler's Account; 12.3 Some Criticisms Addressed; 12.4 Chapter Summary; References; 13 An Inscriptional Meta-Language; 13.1 Some Preliminary Comments 13.2 The System IM13.3 The System ISM_D,\??L; 13.4 The System ISM_D,\??L and Modality; 13.5 The System ISM_D,\??L and the Propositional Attitudes; 13.6 The Adequacy of ISM_D,\??L*; 13.7 Chapter Summary; References; Concluding Remarks; Index