## An introduction to logic |

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### Contents

THE SUBJECT MATTER OF LOGIC | 3 |

Partial Evidence or Probable Inference | 13 |

The Use and Application of Logic | 21 |

Copyright | |

22 other sections not shown

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### Common terms and phrases

affirmative analysis antecedent antilogism Archimedes argument Aristotle assert assumptions axioms base angles calculus calculus of classes called categorical propositions categorical syllogism chapter coin compound propositions conclusion consequences Consider contains contradictory contrapositive deductive demonstrated denoted deny determine dilemma discover discussion disjunctive disjunctive proposition distinct distributed term distribution of terms elements enthymeme equal equiprobable equivalent Euclid evidence examine expression fact figure fluid geometry gism heads Hence hypothetical hypothetical syllogism imply independent integers isosceles l-class logical principles magnetic major premise mathematicians mathematics meaning middle term minor negative non-Euclidean geometry objects particular possible postulate predicate probability of getting probable inference proof propo prove question reader relation right angles sitions straight line street-cleaners subaltern subject matter suppose symbols theorems theory things tion tive traditional logic triangle true or false truth or falsity universal propositions valid moods virtue weight white ball words