Basics and Contacts
Prof. David J. Pym, PhD (Edin), MA, ScD (Cantab), CMath FIMA, CITP FBCS, FRSA
Professor of Information, Logic, and Security at UCL, University of London
Head of Programming Principles, Logic, and Verification (PPLV)
Research Fellow and Director (jointly with Corine Besson) of the Centre for Logic and Language (CeLL), Institute of Philosophy, School of Advanced Study, University of London
Director of UCL's Centre for Doctoral Training in Cybersecurity
University College London
Department of Computer Science
Department of Philosophy (Affiliated Faculty)
Gower Street
London WC1E 6BT
d.pym (at) ucl.ac.uk
Professor of Information, Logic, and Security at UCL, University of London
Head of Programming Principles, Logic, and Verification (PPLV)
Research Fellow and Director (jointly with Corine Besson) of the Centre for Logic and Language (CeLL), Institute of Philosophy, School of Advanced Study, University of London
Director of UCL's Centre for Doctoral Training in Cybersecurity
University College London
Department of Computer Science
Department of Philosophy (Affiliated Faculty)
Gower Street
London WC1E 6BT
d.pym (at) ucl.ac.uk
Assistant
Julia Savage
-
Email: j.savage (at) ucl.ac.uk
Telephone: +44 (0)20 7679 0327 (direct); 30327 (internal)
Brief Bio and Short CV
I am a logician, mathematician, and informatician. My research is
mainly in logic, where I work in pure logic, including
I also work in information security, where I work in
While my main research interests lie in the foundations of logic, as described above, my overall perspective unifies these aspects of my work: I am interested in developing foundations, frameworks, theories, and tools for understanding and reasoning about the complex socio-economic-technical systems that define and support our world.
My contributions have been mainly in the following areas: dependent type theory and logical frameworks, including proof theory, semantics, and a unification algorithm; reductive logic and proof-search, including proof theory and semantics, for classical intuitionistic, and substructural logics; categorical models of the classical sequent calculus and its theory of Cut-reduction; the bunched logic BI and its relatives, including proof theory, semantics, algebraic theory, and computational interpretations, and their applications to program logics, including Separation Logic, and security; distributed systems modelling based on resource semantics and process algebra; modal and epistemic bunched logics and layered graph logics, with applications in access control; utility-theoretic concepts in distributed systems modelling and process algebra, with applications in systems security modelling; trust domains; information security economics; the philosophy and methodology of information security; public policy in information security, including information stewardship.
I have broad experience of research, teaching, and management in leading universities and in industry.
Trust me, I'm a logician.
- - proof-theoretic semantics, also known as the theory of meaning,
- - the proof theory and semantics of reductive logic and proof-search (see, for example,
- Reductive Logic: Proof Theory, Semantics, and Control, by David Pym and Eike
- Ritter, Oxford Logic Guides, and the EPSRC-funded project ReLiC); reductive logic
- can be seen to be the foundation of automated reasoning, logic-based AI, and logic
- programming, including inductive logic programming, and
- - the semantics, proof theory, and applications of bunched logics.
I also work in information security, where I work in
- - the philosophy and methodology of security
- - security economics and policy, and
- - systems security modelling,
While my main research interests lie in the foundations of logic, as described above, my overall perspective unifies these aspects of my work: I am interested in developing foundations, frameworks, theories, and tools for understanding and reasoning about the complex socio-economic-technical systems that define and support our world.
My contributions have been mainly in the following areas: dependent type theory and logical frameworks, including proof theory, semantics, and a unification algorithm; reductive logic and proof-search, including proof theory and semantics, for classical intuitionistic, and substructural logics; categorical models of the classical sequent calculus and its theory of Cut-reduction; the bunched logic BI and its relatives, including proof theory, semantics, algebraic theory, and computational interpretations, and their applications to program logics, including Separation Logic, and security; distributed systems modelling based on resource semantics and process algebra; modal and epistemic bunched logics and layered graph logics, with applications in access control; utility-theoretic concepts in distributed systems modelling and process algebra, with applications in systems security modelling; trust domains; information security economics; the philosophy and methodology of information security; public policy in information security, including information stewardship.
I have broad experience of research, teaching, and management in leading universities and in industry.
Trust me, I'm a logician.

Information
David's UCL CS PageShort CV
- Recent and Selected Publications
- Current Drafts and Recent Papers (html version)
- Logic and Systems Modelling (html version)
- Security and Policy (html version)
- Tools
- Older Publications
- PhD Students
- Research Grants
- EU Marie Sklodowska-Curie RISE Project: MOSAIC.
- EPSRC Programme Grant IRIS
- EPSRC Research Grant ReLiC
- Previous EPSRC research grants at Grants on the Web
- Previously funded by the UK's Technology Strategy Board, the EU, the Royal Society, and the British Council
- Institute of Philosophy
- UCL PPLV
- UCL Information Security
- Teaching
- UCL and Institute of Philosophy Roles
- Editorial Roles