<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.4.1">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2026-06-01T14:20:36+00:00</updated><id>/feed.xml</id><title type="html">Cyclic Structures in Programs and Proofs</title><subtitle>This site collects information about positions, publications and relevant news for the project &quot;Cyclic Structures in Programs and Proofs&quot; project, funded by NWO. The project 
 aims to advance the theory of cyclic structures in proofs and programs, including in
coalgebraic modal logic, type theory, behavioural types, and the proof assistants Agda and Rocq (formely Coq), and create a development environment for Rust based on these techniques.
</subtitle><author><name>Jorge Perez</name><email>j.a.perez@rug.nl</email></author><entry><title type="html">Visit Amorim</title><link href="/2026/05/04/visit-amorim.html" rel="alternate" type="text/html" title="Visit Amorim" /><published>2026-05-04T00:00:00+00:00</published><updated>2026-05-04T00:00:00+00:00</updated><id>/2026/05/04/visit-amorim</id><content type="html" xml:base="/2026/05/04/visit-amorim.html"><![CDATA[<p>From 11–13 May, <a href="https://pedrohaa.github.io/">Pedro Henrique Azevedo de Amorim</a> will visit the <a href="https://stylo.liacs.nl/">STyLo Team</a> of Henning in Leiden.
The purpose is to discuss common interests in coalgebra and categorical logic.</p>]]></content><author><name>Jorge Perez</name><email>j.a.perez@rug.nl</email></author><summary type="html"><![CDATA[From 11–13 May, Pedro Henrique Azevedo de Amorim will visit the STyLo Team of Henning in Leiden. The purpose is to discuss common interests in coalgebra and categorical logic.]]></summary></entry><entry><title type="html">Winter School</title><link href="/2025/10/24/winter-school.html" rel="alternate" type="text/html" title="Winter School" /><published>2025-10-24T00:00:00+00:00</published><updated>2025-10-24T00:00:00+00:00</updated><id>/2025/10/24/winter-school</id><content type="html" xml:base="/2025/10/24/winter-school.html"><![CDATA[<p>The <a href="/school2026">Dutch Winter School on Logic and Verification</a> will take place on January 20 - 23, 2026 at Twente, organized by the University of Twente under the auspices of our project.</p>

<p>The school provides classes for PhD/graduate students in theoretical computer science, with a focus on software verification, logic, and type theory.
Strong master students, as well as researchers and practitioners, are equally welcome.
Participants are expected to have a background in theoretical computer science, mathematics or a related discipline at a master’s level, and have basic familiarity with (functional) programming, semantics, and logic.</p>

<p>See the <a href="/school2026">website of the winter school</a> for more information.</p>]]></content><author><name>Jorge Perez</name><email>j.a.perez@rug.nl</email></author><summary type="html"><![CDATA[The Dutch Winter School on Logic and Verification will take place on January 20 - 23, 2026 at Twente, organized by the University of Twente under the auspices of our project.]]></summary></entry><entry><title type="html">Next Nettcs Meeting</title><link href="/2025/06/23/next-nettcs-meeting.html" rel="alternate" type="text/html" title="Next Nettcs Meeting" /><published>2025-06-23T00:00:00+00:00</published><updated>2025-06-23T00:00:00+00:00</updated><id>/2025/06/23/next-nettcs-meeting</id><content type="html" xml:base="/2025/06/23/next-nettcs-meeting.html"><![CDATA[<p>The next meeting of <a href="https://nettcs.cs.ru.nl/meetings.html">NetTCS</a>, the Dutch network on Types, Coalgebras, and Semantics, will take place on June 27 in Groningen, organized by the Fundamental Computing group under the auspices of our project.</p>

<p>The meeting will be aligned with the kick-off meeting of our project and will have three invited speakers:</p>
<ul>
  <li>Lide Grotenhuis - University of Amsterdam</li>
  <li>Andreia Mordido - University of Lisbon (Portugal)</li>
  <li>Bohdan Liesnikov - TU Delft</li>
</ul>

<p>Everyone is welcome to join us, there is no need to register!</p>

<p>The meeting will take place in the `Lokinzaal’ of the Röling building (Faculty of Law, Oude Boteringestraat 18, 9712 GH Groningen).</p>]]></content><author><name>Jorge Perez</name><email>j.a.perez@rug.nl</email></author><summary type="html"><![CDATA[The next meeting of NetTCS, the Dutch network on Types, Coalgebras, and Semantics, will take place on June 27 in Groningen, organized by the Fundamental Computing group under the auspices of our project.]]></summary></entry><entry><title type="html">Next Nettcs Meeting</title><link href="/2025/02/21/next-nettcs-meeting.html" rel="alternate" type="text/html" title="Next Nettcs Meeting" /><published>2025-02-21T00:00:00+00:00</published><updated>2025-02-21T00:00:00+00:00</updated><id>/2025/02/21/next-nettcs-meeting</id><content type="html" xml:base="/2025/02/21/next-nettcs-meeting.html"><![CDATA[<p>The next meeting of <a href="https://nettcs.cs.ru.nl/meetings.html">NetTCS</a>, the Dutch network on Types, Coalgebras, and Semantics, will take place on March 6 in Apeldoorn, organized by the University of Twente under the auspices of our project.</p>

<p>The meeting will have three invited speakers:</p>
<ul>
  <li>Sergei Stepanenko - Aarhus University</li>
  <li>Thorsten Wißmann - FAU (University of Erlangen and Nuremberg)</li>
  <li>Oisin Flynn-Connolly - Leiden University</li>
</ul>

<p>Everyone is welcome to join us, there is no need to register!</p>]]></content><author><name>Jorge Perez</name><email>j.a.perez@rug.nl</email></author><summary type="html"><![CDATA[The next meeting of NetTCS, the Dutch network on Types, Coalgebras, and Semantics, will take place on March 6 in Apeldoorn, organized by the University of Twente under the auspices of our project.]]></summary></entry><entry><title type="html">Start Cyclic Structures</title><link href="/2025/02/18/start-cyclic-structures.html" rel="alternate" type="text/html" title="Start Cyclic Structures" /><published>2025-02-18T00:00:00+00:00</published><updated>2025-02-18T00:00:00+00:00</updated><id>/2025/02/18/start-cyclic-structures</id><content type="html" xml:base="/2025/02/18/start-cyclic-structures.html"><![CDATA[<p>We are happy to announce that our project “Cyclic Structures in Programs and Proofs” received funding from NWO as an <a href="https://www.nwo.nl/en/news/64-million-euros-for-groundbreaking-fundamental-research-projects">Open competition Domain Science-XL</a>.</p>

<p>This €3 million 
project brings together five universities (TU Delft, Leiden
University, Radboud University, University of Twente, and University
of Groningen) to advance software verification through research in
logic, programming languages, and automated program verification</p>

<p>The project will fund in total 6 PhD and 3 postdoc positions. Details about positions will appear <a href="https://cyclic-structures.gitlab.io/vacancies/">here</a>.</p>]]></content><author><name>Jorge Perez</name><email>j.a.perez@rug.nl</email></author><summary type="html"><![CDATA[We are happy to announce that our project “Cyclic Structures in Programs and Proofs” received funding from NWO as an Open competition Domain Science-XL.]]></summary></entry></feed>