−Table of Contents
Bounded residuated lattices
Abbreviation: RLatb
Definition
A \emph{bounded residuated lattice} is a residuated lattice that is bounded:
⊥ is the least element: ⊥∨x=x
⊤ is the greatest element: ⊤∨x=⊤
Morphisms
Let A and B be bounded residuated lattices. A morphism from A to B is a residuated lattice homomorphism h:A→B that preserves the bounds: h(⊥)=⊥ and h(⊤)=⊤.
Examples
Example 1:
Basic results
Properties
Classtype | variety |
---|---|
Equational theory | decidable |
Quasiequational theory | undecidable |
First-order theory | undecidable |
Locally finite | no |
Residual size | unbounded |
Congruence distributive | yes |
Congruence modular | yes |
Congruence n-permutable | yes, n=2 |
Congruence regular | yes |
Congruence uniform | no |
Congruence extension property | yes |
Definable principal congruences | no |
Equationally def. pr. cong. | no |
Amalgamation property | |
Strong amalgamation property | |
Epimorphisms are surjective |
Finite members
$\begin{array}{lr}
f(1)= &1\\ f(2)= &\\ f(3)= &\\ f(4)= &\\ f(5)= &\\
\end{array}\begin{array}{lr}
f(6)= &\\ f(7)= &\\ f(8)= &\\ f(9)= &\\ f(10)= &\\
\end{array}$
Subclasses
[[...]] subvariety
[[...]] expansion
Superclasses
[[...]] supervariety
[[...]] subreduct