The Small Index Property of the Fraïssé limit of Finite Heyting Algebras

Authors: Kentarô Yamamoto
Publication year: 2023
Publication type: Článek v odborném periodiku
Periodical: Journal of Algebra
Bibliographic citation: YAMAMOTO, Kentarô. The Small Index Property of the Fraïssé limit of Finite Heyting Algebras. Journal of Algebra. 2023, 628(15 August 2023), 382-391. ISSN 0021-8693. E-ISSN 1090-266X
Dostupné z: doi:10.1016/j.jalgebra.2023.03.020.
DOI: 10.1016/j.jalgebra.2023.03.020
ID: 571299
Online record: View online record

Abstract

We show that if a subgroup of the automorphism group of the Fraïssé limit of finite Heyting algebras has a countable index, then it lies between the pointwise and setwise stabilizer of some finite set.