A project at Data61 (CSIRO) aimed at using programming languages with interesting types to aid verification of low-level systems. More information is available at the Cogent website.

Liam O’Connor, Zilin Chen, Christine Rizkallah, Sidney Amani, Japheth Lim, Toby Murray, Yutaka Nagashima, Thomas Sewell, Gerwin Klein
Refinement through Restraint: Bringing Down the Cost of Verification
International Conference on Functional Programming (ICFP), pp. 89-102, Nara, Japan, September 2016.
Available from CSIRO Talk available on YouTube

Christine Rizkallah, Japheth Lim, Yutaka Nagashima, Thomas Sewell, Zilin Chen, Liam O’Connor, Toby Murray, Gabriele Keller and Gerwin Klein
A Framework for the Automatic Formal Verification of Refinement From Cogent to C
International Conference on Interactive Theorem Proving (ITP), LNCS v. 9087, pp. 323-340, Nancy, France, August 2016.
Available from CSIRO

Sidney Amani, Alex Hixon, Zilin Chen, Christine Rizkallah, Peter Chubb, Liam O’Connor, Joel Beeren, Yutaka Nagashima, Japheth Lim, Thomas Sewell, Joseph Tuong, Gabriele Keller, Toby Murray, Gerwin Klein and Gernot Heiser
Cogent: Verifying High-assurance File System Implementations
International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), pp. 175-188, Atlanta, GA, USA, April 2016.
Available from CSIRO

Liam O’Connor, Gabriele Keller, Sidney Amani, Toby Murray, Gerwin Klein, Zilin Chen and Christine Rizkallah
CDSL Version 1: Simplifying Verification with Linear Types
Technical Report, NICTA, October, 2014.
Available from CSIRO

Gabriele Keller, Toby Murray, Sidney Amani, Liam O’Connor, Zilin Chen, Leonid Ryzhyk, Gerwin Klein and Gernot Heiser
File Systems Deserve Verification Too!
Workshop on Programming Languages and Operating Systems (PLOS), pp. 1-7, Farmington, Pennsylvania, USA, November, 2013
A revised version of this paper was published in Operating Systems Review, Volume 48, Issue 1, January 2014, pages 58-64.
Available from CSIRO

Dependent types and type systems

Liam O’Connor
Applications of Applicative Proof Search
Workshop on Type-Driven Development (TyDe), pp. 43-55, Nara, Japan, September, 2016.
Available from SIGPLAN OpenTOC Talk available on YouTube

Liam O’Connor
Formalising GHC’s Type System
Undergraduate Thesis, UNSW, 2012.
Available from UNSW


Yutaka Nagashima and Liam O’Connor
Close Encounters of the Higher Kind: Emulating Constructor Classes in Standard ML
Workshop on ML 2016, Nara, Japan, September, 2016.
Available from CSIRO Talk available on YouTube

Liam O’Connor
Gentzen: A Beginner’s Proof Assistant based on Higher Order Logic
Undergraduate Project, UNSW, 2012
Available here