Philosophy of Law · Legal Ontology · Ethics

David R.
Koepsell

J.D./Ph.D. · Instructional Associate Professor of Philosophy
Texas A&M University · SEAL

I develop structural frameworks for legal reasoning, moral obligation, and institutional repair — treating law and ethics not as normative codes but as architectures of relational being that can be formally modeled, diagnosed, and rebuilt.

Legal Ontology Philosophy of Law Formal Ontology · BFO Ethics AI & Law Jurisprudence

Three interlocking frameworks

My research develops formal structural accounts of law, ethics, and legal reasoning as interconnected projects, each grounded in relational ontology and each generating operational tools for practitioners, students, and researchers.

Forthcoming · Palgrave Macmillan
Legal Ontology · BFO · Jurisprudence

A Structural Ontology of the Law

A formal ontology of legal systems grounded in roles, authority, recognition, obligation, contradiction debt, and institutional repair. Includes the 8-node Minimum Legal Chain (MLC), a 13-type contradiction typology, and the Irreversible Accountability Test.

Explore SOoL →
Published · EthicsPress
Ethics · Relational Ontology · Simulation

The Geometry of the Good

A relational ontology of ethics modeling moral obligation as a structured field shaped by direction, trust, contradiction debt, and repair. Accompanied by SimEthica, an agent-based simulation platform, and the GoG+IAT Moral Reasoner.

Explore GoG →
Live Tool
Legal Reasoning · Pedagogy · AI & Law

IRAC+

A structurally grounded extension of the standard IRAC legal reasoning method. Integrates legal ontology and contradiction diagnostics into analytical legal reasoning — bridging formal ontology and everyday legal practice.

Launch IRAC+ →

Law as architecture, not abstraction

My work begins from dissatisfaction with approaches that treat law and ethics as purely linguistic or normative abstractions. I approach legal and moral systems as structured realities composed of roles, obligations, permissions, powers, and failures — sustained by institutional recognition and vulnerable to structural collapse.

Trained in philosophy under Barry Smith (one of the founders of Basic Formal Ontology) and in law at Buffalo, I apply the methods of formal ontology — developed in the biological and information sciences — to legal and ethical systems. The result is frameworks that are simultaneously philosophical, operational, and teachable.

"A recurring theme across my work is contradiction not as a logical error but as a structural condition. Legal systems fail when recognitions misalign, authorities overreach, or obligations lack correlates — producing contradiction debt that demands repair."

This structural orientation cuts across my three main research programs: SOoL formalizes law's architecture; the Geometry of the Good formalizes the analogous structure in moral life; IRAC+ makes both frameworks operational in legal reasoning.

Academic positions

Instructional Associate Professor of Philosophy
Texas A&M University · SEAL
2014 — Present · College Station, TX
Research in legal ontology, ethics, and AI & law. Developer of SOoL, GoG, and IRAC+.
Online Adjunct Instructor
Texas A&M International University
Current
Tenured Associate Professor
Delft University of Technology
2008 — 2014 · Delft, Netherlands
Faculty of Technology, Policy, and Management. Research in philosophy of technology and applied ontology.
Visiting Professor
Universidad Nacional Autónoma de México (UNAM)
Mexico City, Mexico
Visiting Fellow
Yale Center for Bioethics
New Haven, CT

Books & selected publications

Author and editor of books and articles in philosophy of law, ethics, scientific integrity, and technology. Full list available on Google Scholar.

2026
A Structural Ontology of the Law
Palgrave Macmillan · Forthcoming
2025
The Geometry of the Good
EthicsPress
2009
Who Owns You? Science, Innovation and the Gene Patent Wars
Wiley-Blackwell
2000
The Ontology of Cyberspace
Open Court
All publications on Google Scholar →

Tools, markup languages & platforms

Beyond the theoretical frameworks, I build operational systems — formal tools, markup languages, and interactive platforms that extend the research into practical use.

OWL · RDF · Formal Ontology

FOL / OWL Tester

Online toolset for ontology validation, first-order logic testing, and OWL/RDF reasoning. Supports applied ontology research and student exercises.

MLC · SOoL · Interactive

MLC Chain Auditor

Walk any legal scenario through the 8-node Minimum Legal Chain. Assess closure, identify contradiction types, and generate a full SOoL audit report with contradiction debt rating.

Ethics · Agent-Based Simulation

SimEthica

Agent-based simulation platform developed alongside the Geometry of the Good. Models obligation vectors, contradiction debt, and repair dynamics in formal relational systems.

IAT · Diagnostic Tool

GoG + IAT Moral Reasoner

Interactive diagnostic operationalizing the Irreversible Accountability Test. Makes moral structure visible — distinguishing agency, obligation, and where repair is required.

D&D · Markup Language · GitHub

CAML — Canonical Adventure Markup Language

A formal markup language for representing Dungeons & Dragons adventures, narrative structure, and gameplay state. An application of formal ontology methods to creative systems.

D&D · Online Platform

Everdice

An online Dungeons & Dragons system that uses CAML to support campaign management and live play. Demonstrates CAML in a full interactive environment.

Teaching & collaboration

SOoL and GoG are designed to be taught. Both include self-contained teaching packages suited for jurisprudence, legal theory, philosophy of law, AI & law, and ethics courses — with zero preparation overhead for instructors.

"Students don't just learn about jurisprudence. They use it. A student who runs the Nazi Racial Laws through the auditor and watches Nodes 6–8 collapse while 1–5 close has learned something that no lecture on Hart or Dworkin delivers with the same force."

Guest lectures and workshops are available for jurisprudence, legal theory, international law, and AI & law courses. Researchers applying formal ontology in legal or ethical contexts are welcome to reach out directly.

Download SOoL Teaching Package → Contact for Teaching Inquiries

Get in touch

Office
301 YMCA Building
College Station, TX 77840
Institution
Texas A&M University · SEAL
Publications
Cite This Work
Koepsell, D.R. (2026). A Structural Ontology of the Law. Palgrave Macmillan.
Koepsell, D.R. (2025). The Geometry of the Good. EthicsPress.
Ontology IRI: http://seal.tamu.edu/legal-kernel