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Index
Title Page
Copyright
Contents
What is Logic?
Studying Sentences
The Square off Oppositions
The Syllogism
Connective Logic
Leibniz’s Law
The Reductio ad Absurdum
A “New Organon”
Frege’s Quantifiers
The Context Principle
Propositional Calculus
Cantor’s Set Theory
The Usefulness of Connectives
The Russell Paradox
The Fatal Flaw
The Problem of Surface Grammar
Russell’s System
Wittgenstein’s Logical Pictures
Carnap and the Vienna Circle
The Tolerance Principle
Hilbert’s Proof Theory
The Arrival of Gödel
Gödel’s Incompleteness Theorem
The Connections to Proof Theory
Wittgenstein’s Table of Logical Connectives
Wittgenstein’s Truth Tables
Discovering Tautologies
The Logic Gates of Digital Electronics
A Vending Machine
Turing and the “Enigma Code”
Euclid’s Axiomatic Method
Leibniz’s Proof Method
Abuse of Contradiction
Rules for Connectives
Sensitivity to Grammar
Predicate Calculus
Model Theoretic Semantics
Hilbert’s Recursion Model
Finite Rules for Infinite Production
Simple Instructions
Proof Theory and Formal Language
Tarski’s Truth Conditions
Formal Semantics in Practice
Constructing a Soap Opera
Prolog to an AI Soap Opera
Turing’s recipe for AI
The Problem of Paradoxes
Can Paradoxes be Avoided?
Theory of Types
Tarski’s Solution to the Liar
The Unexorcised Paradox
Gödel’s Incompleteness Theorem
The Consequences of Gödel’s Theorem
The “Halting Problem”
The Limit of Gödel’s Proof
Zeno’s Movement Paradox
An Infinite Sum
A Convergence on Limits
How Much is a “Heap”?
The Challenge to Sets
Undermining Logic
The Fiction of Vague Words
What Do Words “Mean”?
Fuzzy Logic
Fuzzy Heaps
Can Logic Escape Paradox?
Non-Classical Logics: Intuitionism
The Devil’s Argument
Intuitionistic Logic
Intuitionism versus the Reductio Method
The Intuitionistic Fad
Addressing Some Old Problems
The Value of Possible
Truth Values as Numbers
The Possible and Non-Contradiction
From Classical to Fuzzy Logic
Electronic “Possible” States
The Fuzzy Logic Search Engine
The Fuzzy Logical Machine
Logic in the Quantum World
The Distributive Law of Quantum Logic
Logic by Experiment
Logic and Science
The Copernican Revolution
Galileo’s Revolution
Methods of Deduction and Induction
Problems with Induction
Hume’s Fork
Nomological Deduction
Induction by Generalization
Laws or Empirical Predictions
The Raven Paradox
A Problem of Cause and Effect
Popper’s Answer to Hempel
Popper’s Disconfirmation Theory
The Probability of Viable Theory
Quine’s “Web of Belief”
Alterations to the “Web”
Insufficient Evidence
Quine’s Relativism
Feyerabend’s Denial of Scientific Method
Davidson’s Reply to Quine
The Presentation of Truth
Hard-edged Truth versus Relativism
Cognitive Science and Logic
Chomsky’s Universal Grammar
Noun and Verb Categories
Recursive Rules of Grammar
The X-bar Theory
A Logical Theory
Problems of Syntax and Semantics
Complex Grammatical Structures
Problems with “Universal” Grammar
The Symbolic Brain Model
Training a Neural Net
Pattern Recognition
The Rational Behaviour Model
Practical Reason
What is Consciousness?
The Place of Logic
Wittgenstein’s Change of View
Further Reading
Index
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