## A Preface to Logic |

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### Contents

The Subject Matter of Formal Logic | 2 |

Propositions and Uncompleted Symbols | 23 |

Meaning and Implication | 36 |

8 other sections not shown

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### Common terms and phrases

absolute abstract actual analysis apply argument Aristotelian logic Aristotle assert assume assumption attain called Charles Peirce classical concepts conclusion consequences deal deduction definite denote determine distinction elements empirical ence entities ethical judgments evidence existence experience expressions F. H. Bradley fact fallacy false fictions field formal frequency theory geometry human hypotheses ideal identity impossible individual induction inference instances intellectual involves Josiah Royce knowledge language large number laws linguistic logical implication logicians material meaning meaningless mechanics ment metaphor metaphysical method mind modern moral motion nature necessary Newtonian mechanics nominalistic non-Euclidean geometry normative normative science objects observation phenomena philosophers point of view positivistic possible premises principles priori probability proposition prove psychological pure mathematics purely logical question realm reason recognize regard relative frequency rules scientific sense sentences significant statement statistical statistical mechanics symbols theoretical things tion traditional true truth twilight zones universal universal proposition valid verifiable words