Ed Morehouse

Ed, on the rocks


mailing address

TalTech Department of Software Science
Akadeemia tee 21B
12618 Tallinn




I am a postdoc with Pawel Sobocinski in the Compositional Systems and Methods Group of the Department of Software Science at TalTech University.

Between 2016 and 2019 I was a postdoc in the Department of Mathematics and Computer Science at Wesleyan University, where I taught and studied categorical semantics of formal systems.

Between 2013 and 2016 I was a postdoc with Bob Harper in the Principles of Programming Group of the Computer Science Department at Carnegie Mellon University, where I worked on computational aspects of Homotopy Type Theory.

research interests

I am interested in what category theory, type theory and proof theory can learn from one another.
I believe that categorical semantics can be quite helpful in clarifying the algebraic principles governing the properties of formal systems, which can lead us to useful insights into program development and proof search.


or perhaps you were looking for my most influential work: Burritos for the Hungry Mathematician (April 1, 2015)

notes, slides, code, etc.


In the spring of 2020 and 2021 I co-taught TalTech's ITI0212: Functional Programming.

Between fall 2016 and spring 2018 I taught Wesleyan's COMP 112: Introduction to Programming.

In spring 2018 I taught MATH 402: Category Theory, and in spring 2017 I taught COMP 360: Quantum Information Systems.

In the summers of 2015 and 2016 I taught introduction to category theory at the Oregon Programming Languages Summer School.

As a graduate student I taught introduction to calculus and served as teaching assistant for linear algebra, discrete math, mathematical logic, automata theory, programming languages and several introductory programming courses.


I enjoy being outside. In most years of graduate school I helped organize a fall-break trip for graduate and visiting international students. Most recently, we went hiking in Acadia National Park.

In 2008 I was elected to the educational policy committee of my university. Now I have a much deeper appreciation for the mundane but difficult work that goes into making possible all the visible aspects of the functioning of the institution. It felt a bit like when I took a summer job at Universal Studios as an undergraduate.

I have been an unenthusiastic user of LaTeX for a few years now. Lately I have become a somewhat more enthusiasic user of XeTeX and Will Robertson's excellent fontspec and unicode-math packages, which save me loads of typing and clutter. I have written a keyboard layout for Macintosh with the mathematical symbols that I use most often. This gets changed around and expanded pretty frequently, but you're free to use it and adapt it to your own needs. Suggestions are also welcome.

what's that funny wiggle?