## F. P. Ramsey: Philosophical PapersFrank Ramsey was the greatest of the remarkable generation of Cambridge philosophers and logicians which included G. E. Moore, Bertrand Russell, Ludwig Wittgenstein and Maynard Keynes. Before his tragically early death in 1930 at the age of twenty-six, he had done seminal work in mathematics and economics as well as in logic and philosophy. This volume, with a new and extensive introduction by D. H. Mellor, contains all Ramsey's previously published writings on philosophy and the foundations of mathematics. The latter gives the definitive form and defence of the reduction of mathematics to logic undertaken in Russell and Whitehead's Principia Mathematica; the former includes the most profound and original studies of universals, truth, meaning, probability, knowledge, law and causation, all of which are still constantly referred to, and still essential reading for all serious students of these subjects. |

### Contents

PHILOSOPHY 1929 | 1 |

UNIVERSALS 1925 | 8 |

NOTE ON THE PRECEDING PAPER 1926 | 31 |

FACTS AND PROPOSITIONS 1927 | 34 |

TRUTH AND PROBABILITY 1926 | 52 |

PROBABILITY AND PARTIAL BELIEF 1929 | 95 |

REASONABLE DEGREE OF BELIEF 1928 | 97 |

STATISTICS 1928 | 102 |

THEORIES 1929 | 112 |

CAUSAL QUALITIES 1929 | 137 |

LAW AND CAUSALITY | 140 |

B GENERAL PROPOSITIONS AND CAUSALITY 1929 | 145 |

THE FOUNDATIONS OF MATHEMATICS 1925 | 164 |

MATHEMATICAL LOGIC 1926 | 225 |

EPILOGUE 1925 | 245 |

BIBLIOGRAPHY OF RAMSEYS WORKS | 251 |

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### Common terms and phrases

according actual analysis answer appears arguments assert atomic propositions axioms called causal certain chance Chapter characteristic classes clear clearly complex conclusion connection consequences consider consists construct containing contradiction corresponding course deduced defined definition degree of belief depends determine difficulty discuss distinction elementary equivalent explain express extension fact false feel formal functions give given habit hypothetical idea identity important individuals induction infinite instance involve kind knowledge laws lead logical mathematics meaning measure merely method mind names nature objects occur particular philosophy possible predicative functions primary Principia Mathematica probability problem properties propositional function proved qualities question Ramsey Ramsey's range reason Reducibility regard relation result Russell seems sense sentence simply Socrates sort suppose symbol tautology theory things true truth truth-function universals values variable whole wise Wittgenstein