## The elements of logic |

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### Contents

A lNTRODUCTlON | 1 |

THE TRADlTlONAL LOGlC OF CATEGORlCAL | 33 |

Distribution of Terms | 40 |

Copyright | |

11 other sections not shown

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### Common terms and phrases

ambiguity analogy argument is valid believe called categorical form categorical sentence categorical syllogism cause claim component compound sentence conj conjunction consider contain contradiction contrapositive deduction definition degree of probability disjunction ditional Logic Elements of Logic enthymeme equivalent evidence example existential quantification explain expression F T F fallacy Figure follows formal fallacy gorical hypothesis imply inductive argument inductive reasoning infer instance invalid kind liquid Logic of Cate logical form logical laws lung cancer major premise means method mistake modus ponens modus tollens necessarily negation sign observed original sentence p v q person philosophers predicate principle question reductio ad absurdum regards truth rules Samoans sense simp smoking solid someone speaker Suppose swans symbolized tautology tence term tion tional tive truth and falsity truth or falsity truth table truth-functional truth-functionally universal quantification validly Venn diagrams word