### Abstract

The concept of set abstraction is introduced as a simple analogy to lambda abstraction in the theory of lambda calculus. The set abstraction is concerned with two extensions of language features: set expression and predicate variable. Combining these two concepts of extensions to Prolog, we define set abstraction as the set expression in which predicate variables are allowed as data objects. In other words, the set abstraction gets involved in the higher order predicate logic. It is demonstrated that with the help of predicate variables, set abstractions can nicely handle the world of the second order predicate logic. Implementation programs written in Prolog and Concurrent Prolog are presented.

Original language | English |
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Title of host publication | Unknown Host Publication Title |

Publisher | Ohmsha Ltd |

Pages | 333-340 |

Number of pages | 8 |

ISBN (Print) | 4274072215 |

Publication status | Published - 1984 Dec 1 |

Externally published | Yes |

### ASJC Scopus subject areas

- Engineering(all)

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## Cite this

*Unknown Host Publication Title*(pp. 333-340). Ohmsha Ltd.