## A preface to logic |

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### Contents

Foreword | 9 |

The Subject Matter of Formal Logic | 15 |

Propositions and Uncompleted Symbols | 36 |

Copyright | |

6 other sections not shown

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### Common terms and phrases

absolute abstract actual analysis apply argument Aristotelian logic Aristotle assert assume assumption called certainly Charles Peirce classical concepts conclusion consequences deal deduction definite denote determine distinction elements empirical empiricism ence entities ethical judgments evidence existence experience expressions F. H. BRADLEY fact fallacy false fictions field formal frequency theory geometry human hypotheses ideal identity individual induction inference instance intellectual involves Josiah Royce knowledge language large number laws linguistic logical implication logicians material matter meaning meaningless mechanics ments metaphors metaphysical method mind modern moral nature necessary Newtonian mechanics objects observation phenomena philosophers positivists possible premises principles priori prob probabil probability proposition propositional functions prove pure mathematics purely logical question realm reason recognize regard relations relative frequency rules scientific sense sentences significant social statement statistical statistical mechanics syllogism symbols theoretic things tion traditional true truth twilight zones universal universal proposition valid verifiable words