Thanos Tsouanas

I enjoy mathematics, computer science, music. Currently I work as a professor at the IMD institute of the Universidade Federal do Rio Grande do Norte, Brazil.

I obtained my PhD in theoretical computer science from ENS de Lyon (team Plume of the LIP lab) under the supervision of Olivier Laurent.

I obtained my MSc in mathematical logic from MPLA, and my BSc in pure mathematics from the University of Athens.

Further, boring information can be found in my CV.

Under non-re-reconstruction

My current research interests include constructive mathematics, foundations of mathematics, formalization of mathematics, {type, category, proof} theory.

I am currently investigating type theories as foundations of mathematics and their use in proof assistants and the formalization of mathematics. I am also highly interested in (and very passionate about) teaching of mathematics and computation in general, and mathematics education as a research field, including the use of proof assistants and type theoretic foundations in teaching mathematics.

I have worked mostly on theory of programming languages and denotational semantics; specifically on disjunctive logic programs and their game semantics. I have extended the games of simple logic programs to cover logic programs with disjunction, and I have defined an abstract semantic framework which I have used to develop a method to transform any non-disjunctive semantics into a corresponding disjunctive one.

PhD thesis

On the semantics of disjunctive logic programs, defended on July 2nd, 2014.
download: thesis | defense.

Publications

Some talks

OpenBSD ∩ λProlog

Funny

Not so funny

email: thanos@tsouanas.org; telegram: @tsouanas; GitHub: tsouanas

More information about the courses I am currently teaching or have taught in the past can be found on my teaching page.

I have been writing a book based on my lecture notes (in Portuguese).

You can also find videos of some of my lectures, seminars, etc., on my YouTube Channel (in Portuguese).

I like composing and some very few times performing music as well. Some pieces I have recorded: Relic, Words, and Lunaby. Here's Relic:

And here are three of my favorite, much older compositions, I think:

You can find more information about my music on the.thanos.band.

I love programming! In case you care about that (though really, you shouldn't), I mostly use Haskell, TeX, and the Unix shell. You can find a few old and not-so-useful programs I've written below. For newer and not-so-not-so-useful programs, check my GitHub page. If you are looking for some other software in which I'm listed as the author, feel free to drop me an email.

lookbusy

Look busy doing nothing. Pretty much what it says... So, your eco-friendly (room)mate/mom/dad/whatever keeps powering off your computer, after glancing at the screen and making the wise decision that "it just sits there wasting energy, it's not doing anything". Look no further, this program is for you: lookbusy.

TsouTAPL

Project site. Implementation in Haskell of various λ-calculus based systems found in Benjamin Pierce's book, Types and Programming Languages.

If you are interested in this, you may also want to check tapl-haskell, a similar, independent project.

If you have no idea what this book is all about, you probably couldn't care less about this program.

Due to some changes in recent versions of GHC, TsouTAPL won't compile anymore. Until I tweak I won't tweak those things that need tweaking (exercise for the reader), so let's pretend it's some kind of vintage attitude.

TeX, OpenBSD, (neo)vim, Agda, Lean, Haskell, Racket, Rust, xmonad, tmux, mutt, Reaper, Doepfer, Roland, Yamaha, Moeck, Vi Hart, ...