Cardinality of sets of closed functional classes in weak 3-valued logics

Н.Н. Преловский
2013 Logical Investigations  
This paper proves that sets of closed functional classes in 3-valued logics of Bochvar $B_3$ and Hallden $H_3$ contains a continuum of different closed classes. It is also proven that both of these logics contain a closed functional class which has no basis.
doi:10.21146/2074-1472-2013-19-0-334-343 fatcat:nxpxrwlazzdv5i3pjl6jwvhpui