## Philosophy Lexicon of Arguments | |||

One, number 1: in modern logic it is not possible to introduce the number one directly. It must be introduced indirectly, via existential quantification ("for at least one x ...") and universal quantification ("for all x ..."). In addition, identity is needed. See also definition, identity, logic, elementary logic, number theory, numbers. | |||

Author | Item | More concepts for author | |
---|---|---|---|

Frege, Gottlob | One (Number 1) | Frege, Gottlob | |

Hilbert, D. | One (Number 1) | Hilbert, D. | |

Lewis, David | One (Number 1) | Lewis, David | |

Prior, Arthur | One (Number 1) | Prior, Arthur | |

Schröder, E. | One (Number 1) | Schröder, E. | |

Ed. Martin Schulz, access date 2017-05-28 |