## On the Philosophy of LogicJennifer Fisher’s ON THE PHILOSOPHY OF LOGIC explores questions about logic often overlooked by philosophers. Which of the many different logics available to us is right? How would we know? What makes a logic right in the first place? Is logic really a good guide to human reasoning? An ideal companion text for any course in symbolic logic, this lively and accessible book explains important logical concepts, introduces classical logic and its problems and alternatives, and reveals the rich and interesting philosophical issues that arise in exploring the fundamentals of logic. THE WADSWORTH PHILOSOPHICAL TOPICS SERIES (under the general editorship of Robert Talisse, Vanderbilt University) presents readers with concise, timely, and insightful introductions to a variety of traditional and contemporary philosophical subjects. With this series, students of philosophy will be able to discover the richness of philosophical inquiry across a wide array of concepts, including hallmark philosophical themes and themes typically underrepresented in mainstream philosophy publishing. Written by a distinguished list of scholars who have garnered particular recognition for their excellence in teaching, this series presents the vast sweep of today’s philosophical exploration in highly accessible and affordable volumes. These books will prove valuable to philosophy teachers and their students as well as to other readers who share a general interest in philosophy. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. |

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### Contents

What is Logic? | |

Formal LogicAn Introduction | |

An Overview of Classical Logic | |

What is Truth? | |

Three Distinctions | |

Quantifiers and Identity | |

Modal Logic | |

Bivalence | |

Two Logical Truths | |

Quantum Logic | |

Which Logic is Right? | |

The Metaphysics of Logic | |

The Epistemology of Logic | |

Rationality and Logic | |

Further Readings | |

Glossary | |

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### Common terms and phrases

2008 Thomson Learning accessibility relation According account of logical actually antecedent argued argument form Aristotle’s assert assumption beliefs bivalence Chapter classical logic clear clearly complete declarative sentence conclusion conjunction consider contradiction Copyright 2008 Thomson defined disagree discussion Disjunctive Syllogism domain example F F F F T F fact falsity Frege grains of sand Harman heap of sand hole human intuitionist logic intuitions invalid Jennifer Fisher justified language logical consequence logical form logical functions logical rules logical terms logical truth logician mathematical means modal logics negation non-classical logics objects philosophers possible worlds predicate Putnam’s quantum logic quantum mechanics question realism reason relevance logics revising logic Rights Reserved rule of inference run a red seems semantics sense supposed symbols theorem theories of truth things tonk true or false truth table truth values vague terms valid argument Wason selection task wrong