DelftPL shared a status by jesper
Jesper Agdakx 🔸
jesper@agda.club

A message from my colleague Benedikt Ahrens:

Hi all,

I have funding for a postdoc position at TU Delft on combining computer proof assistants and computer algebra systems in the area of category theory, and I would be happy to hear from potential applicants before the formal advert goes out.

I am looking for someone who is interested in all three of proof assistants, computer algebra systems, and category theory, and who has some experience in at least one or two of them.

The position ideally starts no later than March 2027.

If you are interested, please email me at B.P.Ahrens@tudelft.nl with a short note about your background and your research interests. Informal questions are very welcome.

Please feel free to forward this to anyone who might be a good fit.

Best wishes, Benedikt

September 23, 2026
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Georgi Nihrizov: Hole-Driven Development for Substructural Type Systems in Imperative Languages

"This thesis asks whether hole-driven development can be realized effectively in Rust, an imperative language with a substructural type system. We argue that this technique is well-suited to Rust as its constrained type system can provide a solid base for the hole-driven development approach."

https://resolver.tudelft.nl/uuid:12e8946e-6479-49f6-bd26-8ffddf39ffb1

#Master #Thesis #TypeDrivenDevelopment #Rust

September 21, 2026
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Gijs van der Heide: Generic Traversal Fusion in Strategic Programming

"We developed an algorithm to perform traversal fusion in strategic programming languages. [...] The algorithm performs dependency analysis on strategic programs, and then attempts to fuse together recursive calls without introducing dependency violations in order to determine legal opportunities for traversal fusion."

https://resolver.tudelft.nl/uuid:4179e07b-6be2-4cd2-bfda-d801056034d6

#Thesis #ProgrammingLanguages #StrategicProgramming #Stratego

August 31, 2026
Programming Languages Delft
DelftPL@akademienl.social

Also, a belated welcome to Ruben Backx who joined our group as a PhD student earlier this year and is working on Formal Methods for Software Engineering with Trust with Andreea Costea!

June 30, 2026
Programming Languages Delft
DelftPL@akademienl.social

Two master students working on different parts the Agda Core project are defending this week!

Termination Checking in Agda Core Arthur Jacques (https://resolver.tudelft.nl/uuid:4b1aa307-ba0b-4816-96c9-5e740581bc48)

Correct-by-Construction eta-conversion for Agda Core by Ate-Jan de Vries (https://resolver.tudelft.nl/uuid:47bc2732-f92b-4afa-adc9-60023849e9f5)

#Agda #AgdaCore #DependentTypes #CorrectByConstruction #master #thesis

June 30, 2026
DelftPL shared a status by MartinEscardo
Martin Escardo
MartinEscardo@mathstodon.xyz

Peter Mosses (@pdmosses) has created an alternative html rendering of TypeTopology [1].

This is still a prototype.

You can compare it to the original rendering [2], and give us feedback if you wish.

You can also report issues in [3].

[1] https://pdmosses.github.io/TypeTopology/

[2] https://martinescardo.github.io/TypeTopology/

[3] https://github.com/pdmosses/TypeTopology/issues

April 20, 2026
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Gideon Bot: "Rethinking Dependent Type Checking, Co-Contextually"

"This work explores a co-contextual formulation of a dependent type system and its accompanying type-checking algorithm. Both incremental and parallel variants of the algorithm are implemented for the dependently typed lambda calculus Elara, based on LambdaPi (Löh, McBride, and Swierstra, 2010)."

https://resolver.tudelft.nl/uuid:79e488af-6703-4558-b2c6-1606f8ba1f14

#Master #thesis #DependentTypes #Incremental #Concurrent #TypeChecking

April 20, 2026
DelftPL shared a status by jesper
Jesper Agdakx 🔸
jesper@agda.club
Our department is hiring an assistant professor in computer science (including programming languages). If you would like to join our small but diverse PL group in beautiful little Delft, please don't hesitate to apply! Also feel free to reach out to me if you want to know anything about our department or academic life in the Netherlands.

Deadline for applications: 11th of May

academictransfer.com/en/jobs/360114/assistant-professor-in-computer-science/

#TUDelft #AssistantProfessor #Hiring #ComputerScience #SoftwareTechnology #ProgrammingLanguages #TypeTheory #SoftwareVerification #Agda #Rocq
April 14, 2026
DelftPL shared a status by avandeursen
Arie van Deursen 🇪🇺🇳🇱
avandeursen@mastodon.acm.org

RE: https://hachyderm.io/@Mara/116380073192703496

Featuring #tudelft ‘s very own Andreea Costea with lessons learnt from using Rust as the intro to programming”. #rust
/cc @DelftPL

April 11, 2026
DelftPL shared a status by sarantja
Sára Juhošová
sarantja@mastodon.social

Check out the pre-print of our latest work, accepted at ICPC'26:

"The Way of Types: A Report on Developer Experience with Type-Driven Development" by me, @azaidman, and @jesper

https://sarajuhosova.com/assets/files/2026-icpc.pdf

To determine how current practitioners experience the use of type-driven development (TyDD) and what inhibits its adoption by a wider range of developers, we conducted a survey with 130 participants from various backgrounds, asking them to describe their experience with current TyDD tools.

January 12, 2026
Programming Languages Delft
DelftPL@akademienl.social

Welcome to @NathanielB who has just started his PhD in our group!

December 03, 2025
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Arthur de Groot: Memoising Scope Graph Query Resolution

"In this thesis, we propose a memoised variant of the current state-of-the-art query resolution algorithm that memoises data encountered during graph traversal, reducing future queries to a cache lookup. [..] We construct a synthetic dataset with these patterns that is used to evaluate query resolution algorithms with microbenchmarks."

https://resolver.tudelft.nl/uuid:7c5ea32b-d4de-4c69-a5be-c866d6250547

#ScopeGraphs #Spoofax #Statix #LanguageEngineering #Thesis

October 29, 2025
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Julius de Jeu: "Detecting Undefined Behavior Across Foreign Function Boundaries in Rust Programs"

"[..] we propose a novel mechanism for detecting memory safety violations across language boundaries. We implemented it in a tool called MiriPBT: a combination of MIRI, a tool that can enforce ownership rules at runtime [..] and Property Based Testing, which allows us to greatly increase the size of the domain we can test."

https://resolver.tudelft.nl/uuid:dffbff9e-6bbc-491a-a00e-8754ce0fdd77

#master #thesis #Rust #MIRI

September 05, 2025
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by José Padilla Cancio: "Integrating runtime identity functions into a dependent type system"

"We name functions between these types that behave like the identity at runtime, runtime identity (runid) functions. [..] This thesis introduces a lightweight core language that extends a QTT-style, intensional Martin-Löf Type Theory (MLTT) with explicit markers for runid functions."

https://resolver.tudelft.nl/uuid:e6d5e4a8-6df5-4867-ad9b-4ac77cdc2512

#thesis #TypeTheory #QTT #DependentTypes #agda

September 02, 2025
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Csanad Farkas:
"Formalisation of Display Map Categories in Univalent Foundations"

"A display map category, originally just called a class of display maps with a stability condition, can be used to model dependent type theory. [...] The formalisation has been done using Univalent Foundations, while the implementation has been completed using Rocq, and more specifically the UniMath library."

https://resolver.tudelft.nl/uuid:25ddff49-8d20-40ce-bb35-3b3f986c65ff

#Master #Thesis #Rocq #HoTT #UnivalentFoundations #UniMath

August 26, 2025
Programming Languages Delft
DelftPL@akademienl.social

"2-Functoriality of Initial Semantics, and Applications" by Benedikt Ahrens, Ambroise Lafont, and Thomas Lamiaux was accepted at #icfp

"We provide tools to compare and relate the models obtained from a signature for different choices of monoidal category [..] we use our results to relate the models of the different implementation [..] and to provide a generalized recursion principle for simply-typed syntax."

Read it on #arXiv: https://arxiv.org/abs/2503.10863

#TypeTheory #CategoryTheory

June 30, 2025
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Maria Khakimova: "Enhancing Proof Assistant Error Messages with Hints: A User Study"

"We implemented hint enhancements for the error messages displayed upon three common mistakes: forgetting whitespace, using confusable Unicode characters, and supplying too few arguments to a function. A between-participants user study was then conducted with 70 students [..]"

https://repository.tudelft.nl/record/uuid:52513287-7149-41f1-a8e8-8e38696cb283

#Agda #DependentTypes #ProofAssistants #ErrorMessages #Usability #UserStudy #master #thesis

June 18, 2025
Programming Languages Delft
DelftPL@akademienl.social

Master thesis by Michał Raczkiewicz: "Model Checking Under JAM21"

"This thesis presents the first known implementation of a model checker for the Java memory model JAM21 within the GenMC framework - a tool for stateless model checking using custom memory models. [..] We provide a formal proof of equivalence between the new vector clock algorithm and the original implementation to ensure correctness."

https://repository.tudelft.nl/record/uuid:3c4c7d73-b084-4a4d-9d6d-93256bc09598

#Java #ModelChecking #MemoryModels #FormalProofs #master #thesis

June 18, 2025