On two intervals in the lattice of partial ultraclones of rank 2

Authors

  • Иван Шаранхаев Бурятский государственный университет имени Доржи Банзарова

Keywords:

multifunction, Boolean function, monotone function, self-dual function, superposition, closed set, clone, partial ultraclone, lattice, interval of lattice

Abstract

In article the intervals in the lattice of partial ultraclones
of rank 2 are considered. The well-known classes of all monotone M and
all self-dual S Boolean functions are partial ultraclones of rank 2. We
proved that each of the intervals I(M,M2 ) and I(S,M2 ), where M2 is
complete partial ultraclone of rank 2, is finite.

Published

2024-01-28

Issue

Section

Mathematical logic, algebra and number theory