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| Introduction to the Theory of Computation | |
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| Mathematical Preliminaries and Notation | |
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| Sets | |
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| Functions and Relations | |
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| Graphs and Trees | |
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| Proof Techniques | |
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| Three Basic Concepts | |
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| Languages | |
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| Grammars | |
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| Automata | |
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| Some Applications | |
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| Finite Automata | |
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| Deterministic Finite Accepters | |
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| Deterministic Accepters and Transition Graphs | |
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| Languages and Dfas | |
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| Regular Languages | |
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| Nondeterministic Finite Accepters | |
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| Definition of a Nondeterministic Accepter | |
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| Why Nondeterminism? | |
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| Equivalence of Deterministic and Nondeterministic Finite Accepters | |
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| Reduction of the Number of States in Finite Automata | |
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| Regular Languages and Regular Grammars | |
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| Regular Expressions | |
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| Formal Definition of a Regular Expression | |
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| Languages Associated with Regular Expressions | |
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| Connection Between Regular Expressions and Regular Languages | |
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| Regular Expressions Denote Regular Languages | |
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| Regular Expressions for Regular Languages | |
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| Regular Expressions for Describing Simple Patterns | |
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| Regular Grammars | |
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| Right- and Left-Linear Grammars | |
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| Right-Linear Grammars Generate Regular Languages | |
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| Right-Linear Grammars for Regular Languages | |
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| Equivalence Between Regular Languages and Regular Grammars | |
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| Properties of Regular Languages | |
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| Closure Properties of Regular Languages | |
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| Closure under Simple Set Operations | |
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| Closure under Other Operations | |
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| Elementary Questions about Regular Languages | |
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| Identifying Nonregular Languages | |
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| Using the Pigeonhole Principle | |
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| A Pumping Lemma | |
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| Context-Free Languages | |
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| Context-Free Grammars | |
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| Examples of Context-Free Languages | |
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| Leftmost and Rightmost Derivations | |
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| Derivation Trees | |
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| Relation Between Sentential Forms and Derivation Trees | |
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| Parsing and Ambiguity | |
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| Parsing and Membership | |
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| Ambiguity in Grammars and Languages | |
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| Context-Free Grammars and Programming Languages | |
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| Simplification of Context-Free Grammars | |
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| Methods for Transforming Grammars | |
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| A Useful Substitution Rule | |
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| Removing Useless Productions | |
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| Removing [lambda]-Productions | |
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| Removing Unit-Productions | |
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| Two Important Normal Forms | |
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| Chomsky Normal Form | |
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| Greibach Normal Form | |
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| A Membership Algorithm for Context-Free Grammars | |
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| Pushdown Automata | |
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| Nondeterministic Pushdown Automata | |
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| Definition of a Pushdown Automaton | |
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| A Language Accepted by a Pushdown Automaton | |
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| Pushdown Automata and Context-Free Languages | |
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| Pushdown Automata for Context-Free Languages | |
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| Context-Free Grammars for Pushdown Automata | |
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| Deterministic Pushdown Automata and Deterministic Context-Free Languages | |
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| Grammars for Deterministic Context-Free Languages | |
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| Properties of Context-Free Languages | |
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| Two Pumping Lemmas | |
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| A Pumping Lemma for Context-Free Languages | |
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| A Pumping Lemma for Linear Languages | |
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| Closure Properties and Decision Algorithms for Context-Free Languages | |
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| Closure of Context-Free Languages | |
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| Some Decidable Properties of Context-Free Languages | |
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| Turing Machines | |
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| The Standard Turing Machine | |
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| Definition of a Turing Machine | |
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| Turing Machines as Language Accepters | |
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| Turing Machines as Transducers | |
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| Combining Turing Machines for Complicated Tasks | |
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| Turing's Thesis | |
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| Other Models of Turing Machines | |
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| Minor Variations on the Turing Machine Theme | |
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| Equivalence of Classes of Automata | |
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| Turing Machines with a Stay-Option | |
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| Turing Machines with Semi-Infinite Tape | |
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| The Off-Line Turing Machine | |
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| Turing Machines with More Complex Storage | |
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| Multitape Turing Machines | |
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| Multidimensional Turing Machines | |
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| Nondeterministic Turing Machines | |
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| A Universal Turing Machine | |
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| Linear Bounded Automata | |
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| A Hierarchy of Formal Languages and Automata | |
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| Recursive and Recursively Enumerable Languages | |
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| Languages That Are Not Recursively Enumerable | |
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| A Language That Is Not Recursively Enumerable | |
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| A Language That Is Recursively Enumerable But Not Recursive | |
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| Unrestricted Grammars | |
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| Context-Sensitive Grammars and Languages | |
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| Context-Sensitive Languages and Linear Bounded Automata | |
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| Relation Between Recursive and Context-Sensitive Languages | |
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| The Chomsky Hierarchy | |
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| Limits of Algorithmic Computation | |
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| Some Problems That Cannot Be Solved By Turing Machines | |
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| The Turing Machine Halting Problem | |
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| Reducing One Undecidable Problem to Another | |
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| Undecidable Problems for Recursively Enumerable Languages | |
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| The Post Correspondence Problem | |
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| Undecidable Problems for Context-Free Languages | |
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| Other Models of Computation | |
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| Recursive Functions | |
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| Primitive Recursive Functions | |
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| Ackermann's Function | |
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| Post Systems | |
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| Rewriting Systems | |
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| Markov Algorithms | |
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| L-Systems | |
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| An Introduction to Computational Complexity | |
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| Efficiency of Computation | |
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| Turing Machines and Complexity | |
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| Language Families and Complexity Classes | |
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| The Complexity Classes P and NP | |
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| Answers to Selected Exercises | |
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| References | |
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| Index | |