Generalized Boolean algebras

Abbreviation: GBA

Definition

A \emph{generalized Boolean algebra} is a Brouwerian algebras $\mathbf{A}=\langle A, \vee, \wedge, 1, \rightarrow\rangle$ such that

$x\vee y=(x\rightarrow y)\rightarrow y$

Morphisms

Let $\mathbf{A}$ and $\mathbf{B}$ be generalized Boolean algebras. A morphism from $\mathbf{A}$ to $\mathbf{B}$ is a function $h:A\rightarrow B$ that is a homomorphism:

$h(x\vee y)=h(x)\vee h(y)$, $h(x\wedge y)=h(x)\wedge h(y)\ \mbox{and} h(1)=1$, $h(x\rightarrow y)=h(x)\rightarrow h(y)$

Examples

Example 1:

Basic results

Properties

Finite members

$\begin{array}{lr} f(1)= &1
f(2)= &1
f(3)= &0
f(4)= &1
f(5)= &0
f(6)= &0
\end{array}$

Subclasses

Superclasses

References


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