## Beginners' logic |

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### Contents

HAFT KB PAGl | 1 |

The Definition of Logic Logic a Normative | 10 |

Hypothet1cal and Alternat1ve Arguments | 39 |

Copyright | |

10 other sections not shown

### Common terms and phrases

affirmative affirms the consequent alternative proposition analogy angles animals antecedent argument Axiom body called categorical proposition categorical syllogism cause Chap chapter color conclusion consequent considered contradictory contrapositive contrary correlation corresponding deductive denies the antecedent disjunctive doctrine earth employed enthymeme equal equivalent error example Exercises.—1 experience explained expressed facts fallacy false figure given hand heat horse hypothesis hypothetical form hypothetical proposition hypothetical syllogism Ibid implies included individual induction inference instances invalid latter light logical sum major premise material fallacy means ment method of agreement method of difference minor modus ponens modus tollens motion mystic nature negative nociceptors Observe obverse Pennsylvanians phenomenon planets possible postulate predicate principle probability prove quadrupeds quantity reason relation represent sense-perception simple conversion species square statement Suppose Symbolic Logic temperature theory things thinking tion tive triangle true truth universal valid words