## Philosophy Lexicon of Arguments | |||

2nd order Logic: Predicate logic of the 2nd order goes beyond predicate logic of the 1st level allowing quantification over properties and relations, and not just objects. Thus comparisons of the powerfulness of sets become possible. Problems which are expressed in everyday terms with terms such as "greater", "between", etc., and e.g. the specification of all the properties of an object require predicate logic of the 2nd order. Since the 2nd level logic is not complete (because there are, for example, an infinite number of properties of properties), one often tries to get on with the logic of the 1st order. | |||

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

Bigelow, John | Second Order Logic, HOL | Bigelow, John | |

Cresswell, M.J. | Second Order Logic, HOL | Cresswell, M.J. | |

Field, Hartry | Second Order Logic, HOL | Field, Hartry | |

Logic Texts | Second Order Logic, HOL | Logic Texts | |

Wittgenstein, L. | Second Order Logic, HOL | Wittgenstein, L. | |

Ed. Martin Schulz, access date 2017-05-29 |