Table of Contents

Residuated partially ordered monoids

Abbreviation: RpoMon

Definition

A \emph{residuated partially ordered monoid} (or \emph{rpo-monoid}) is a structure $\mathbf{A}=\langle A,\le,\cdot,1,\backslash,/\rangle$ such that

$\langle A,\le\rangle$ is a partially ordered set,

$\langle A,\cdot,1\rangle$ is a monoid and

$\backslash$ is the left residual of $\cdot$: $x\cdot y\le z\iff y\le x\backslash z$

$/$ is the right residual of $\cdot$: $x\cdot y\le z\iff x\le z/y$.

Morphisms

Let $\mathbf{A}$ and $\mathbf{B}$ be residuated po-monoids. A morphism from $\mathbf{A}$ to $\mathbf{B}$ is a function $h:A\rightarrow B$ that is an order-preserving homomorphism: $x\le y\implies h(x)\le h(y)$, $h(x \cdot y)=h(x) \cdot h(y)$, $h(x \backslash y)=h(x) \backslash h(y)$, $h(x / y)=h(x) / h(y)$.

Examples

Basic results

Properties

Feel free to add or delete properties from this list. The list below may contain properties that are not relevant to the class that is being described.

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

Commutative residuated partially ordered monoids

Involutive residuated partially ordered monoids

Residuated lattices

Superclasses

Partially ordered monoids

Residuated partially ordered semigroups

References