Sandwiches of ages

Annals of Pure and Applied Logic 108 (1-3):295-326 (2001)

Abstract

The age of a relational structure R is the set A of finite restrictions of R considered up to isomorphism. R. Fraı̈ssé, who introduced this notion, showed that ages coincide with nonempty ideals of the poset consisting of finite relational structures, considered up to isomorphism and ordered by embeddability. Here, given two ages A ⊆ B , we study the poset D consisting of ages C in sandwich between A and B . Among other things we show that if D is infinite then it contains an infinite chain

Download options

PhilArchive



    Upload a copy of this work     Papers currently archived: 72,856

External links

Setup an account with your affiliations in order to access resources via your University's proxy server

Through your library

Analytics

Added to PP
2014-01-16

Downloads
2 (#1,460,116)

6 months
1 (#386,016)

Historical graph of downloads
How can I increase my downloads?

References found in this work

Application de la Notion de Relation Presque-Enchainable au Denombrement des Restrictions Finies D'une Relation.Maurice Pouzet - 1981 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 27 (19-21):289-332.
Relation Minimale Pour Son??Ge.Maurice Pouzet - 1979 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 25 (19-24):315-344.
Infinite Projection Properties.Christian Delhommé - 1998 - Mathematical Logic Quarterly 44 (4):481-492.
Relation Minimale Pour Son Ǎge.Maurice Pouzet - 1979 - Mathematical Logic Quarterly 25 (19‐24):315-344.

Add more references

Citations of this work

No citations found.

Add more citations