Communication between agents in dynamic epistemic logic

TL;DR

This paper explores communication actions among epistemic logic agents, defining model transformations, modalities, and axioms for sharing all or part of agents' information.

Contribution

It introduces formal models and axiom systems for communication actions where agents share either complete or partial information within dynamic epistemic logic.

Findings

Defined model operations for information sharing

Introduced modalities for communication actions

Provided axiomatic systems for these modalities

Abstract

This manuscript studies actions of communication between epistemic logic agents. It starts by looking into actions through which all/some agents share all their information, defining the model operation that transforms the model, discussing its properties, introducing a modality for describing it and providing an axiom system for the latter. The main part of the manuscript focuses on an action through which some agents share part of their information: they share all that they know about a topic defined by a given formula. Once again, the manuscript defines the model operation that transforms the model, discusses its properties, introduces a modality for describing it and provides an axiom system for the latter.