Three Types and Traditions of Logic: Syllogistic, Calculus and Predicate Logic
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Wolfgang Kienzler
Abstract
Modern logic grew out of the work of Frege and of the tradition which Boole initiated. However, as the Quine-Putnam exchange illustrates, the relations between the respective camps are far from being well understood.We can get some clues from the way Frege critically discusses the Boole-Schröder tradition. Furthermore Michael Wolff has suggested that there is a close and internal relatedness of all three major types of logic, even declaring syllogistic logic to be the one and only “strictly formal” type of logic. A closer look at the Euler diagrams and their influence on the understanding of logic in the 19th century can highlight something of a silent revolution under way, preparing logicians to accept the non-exclusive alternative as basic, to accept tautologies as the paradigm of truth, and to introduce truth-functionality. The second half of this contribution offers an overview of the three traditions, in giving brief answers to the same series of questions. In addition, Wittgenstein’s Tractatus is included in the questionnaire. All of this will may help to view the history of logic as the interaction of the three distinct, yet intrinsically related paradigms of Syllogistic, Calculus and Predicate logic.
Abstract
Modern logic grew out of the work of Frege and of the tradition which Boole initiated. However, as the Quine-Putnam exchange illustrates, the relations between the respective camps are far from being well understood.We can get some clues from the way Frege critically discusses the Boole-Schröder tradition. Furthermore Michael Wolff has suggested that there is a close and internal relatedness of all three major types of logic, even declaring syllogistic logic to be the one and only “strictly formal” type of logic. A closer look at the Euler diagrams and their influence on the understanding of logic in the 19th century can highlight something of a silent revolution under way, preparing logicians to accept the non-exclusive alternative as basic, to accept tautologies as the paradigm of truth, and to introduce truth-functionality. The second half of this contribution offers an overview of the three traditions, in giving brief answers to the same series of questions. In addition, Wittgenstein’s Tractatus is included in the questionnaire. All of this will may help to view the history of logic as the interaction of the three distinct, yet intrinsically related paradigms of Syllogistic, Calculus and Predicate logic.
Chapters in this book
- Frontmatter I
- Contents V
- Preface IX
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Part I: Philosophy of Logic
- Link’s Revenge: A Case Study in Natural Language Mereology 3
- Universal Translatability: An Optimality- Based Justification of (Classical) Logic 37
- Invariance and Necessity 55
- Translations Between Logics: A Survey 71
- On the Relation of Logic to Metalogic 91
- Free Logic and the Quantified Argument Calculus 105
- Dependencies Between Quantifiers Vs. Dependencies Between Variables 117
- Three Types and Traditions of Logic: Syllogistic, Calculus and Predicate Logic 133
- Truth, Paradox, and the Procedural Conception of Fregean Sense 153
- Wittgenstein and Frege on Assertion 169
- Assertions and Their Justification: Demonstration and Self-Evidence 183
- Surprises in Logic: When Dynamic Formality Meets Interactive Compositionality 197
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Part II: Philosophy of Mathematics
- Neologicist Foundations: Inconsistent Abstraction Principles and Part-Whole 215
- What Hilbert and Bernays Meant by “Finitism” 249
- Wittgenstein and Turing 263
- Remarks on Two Papers of Paul Bernays 297
- The Significance of the Curry-Howard Isomorphism 313
- Reductions of Mathematics: Foundation or Horizon? 327
- What Are the Axioms for Numbers and Who Invented Them? 343
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Part III: Wittgenstein
- Following a Rule: Waismann’s Variation 359
- Propositions in Wittgenstein and Ramsey 375
- An Unexpected Feature of Classical Propositional Logic in the Tractatus 385
- Ontology in Tractatus Logico-Philosophicus: A Topological Approach 397
- Adding 4.0241 to TLP 415
- Understanding Wittgenstein’s Wood Sellers 429
- On the Infinite, In-Potentia: Discovery of the Hidden Revision of Philosophical Investigations and Its Relation to TS 209 Through the Eyes of Wittgensteinian Mathematics 441
- Incomplete Pictures and Specific Forms: Wittgenstein Around 1930 457
- „Man kann die Menschen nicht zum Guten führen“ – Zur Logik des moralischen Urteils bei Wittgenstein und Hegel 473
- Der Status mathematischer und religiöser Sätze bei Wittgenstein 485
- Gutes Sehen 499
- Wittgenstein’s Conjecture 515
- Index of Names 535
- Index of Subjects 539
Chapters in this book
- Frontmatter I
- Contents V
- Preface IX
-
Part I: Philosophy of Logic
- Link’s Revenge: A Case Study in Natural Language Mereology 3
- Universal Translatability: An Optimality- Based Justification of (Classical) Logic 37
- Invariance and Necessity 55
- Translations Between Logics: A Survey 71
- On the Relation of Logic to Metalogic 91
- Free Logic and the Quantified Argument Calculus 105
- Dependencies Between Quantifiers Vs. Dependencies Between Variables 117
- Three Types and Traditions of Logic: Syllogistic, Calculus and Predicate Logic 133
- Truth, Paradox, and the Procedural Conception of Fregean Sense 153
- Wittgenstein and Frege on Assertion 169
- Assertions and Their Justification: Demonstration and Self-Evidence 183
- Surprises in Logic: When Dynamic Formality Meets Interactive Compositionality 197
-
Part II: Philosophy of Mathematics
- Neologicist Foundations: Inconsistent Abstraction Principles and Part-Whole 215
- What Hilbert and Bernays Meant by “Finitism” 249
- Wittgenstein and Turing 263
- Remarks on Two Papers of Paul Bernays 297
- The Significance of the Curry-Howard Isomorphism 313
- Reductions of Mathematics: Foundation or Horizon? 327
- What Are the Axioms for Numbers and Who Invented Them? 343
-
Part III: Wittgenstein
- Following a Rule: Waismann’s Variation 359
- Propositions in Wittgenstein and Ramsey 375
- An Unexpected Feature of Classical Propositional Logic in the Tractatus 385
- Ontology in Tractatus Logico-Philosophicus: A Topological Approach 397
- Adding 4.0241 to TLP 415
- Understanding Wittgenstein’s Wood Sellers 429
- On the Infinite, In-Potentia: Discovery of the Hidden Revision of Philosophical Investigations and Its Relation to TS 209 Through the Eyes of Wittgensteinian Mathematics 441
- Incomplete Pictures and Specific Forms: Wittgenstein Around 1930 457
- „Man kann die Menschen nicht zum Guten führen“ – Zur Logik des moralischen Urteils bei Wittgenstein und Hegel 473
- Der Status mathematischer und religiöser Sätze bei Wittgenstein 485
- Gutes Sehen 499
- Wittgenstein’s Conjecture 515
- Index of Names 535
- Index of Subjects 539