Robin Piedeleu (@rwolffoot) header
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boxes-and-wires scientist

UK/France
Joined September 2016
Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)Photo by Robin Piedeleu (@rwolffoot)
🚀 Call for Submissions – SYCO 13! 🚀 Join us in London (April 24-25) to share your work on category theory, logic, & more. ✅ Easy submission (papers, WIP, theses...), no proceedings 📅 Deadline: 14 March 2025 (this Friday!) 🔗 Details here: cl.cam.ac.uk/events/syco/13/
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Zooming out a bit (a lot!), it looks like the so-called "strong programme" of David Bloor, Barry Barnes and others in the sociology of scientific knowledge is what I'm after. Will need to dig to see whether any of them has looked at maths or other deductive sciences specifically
What are good books/articles about the sociology of mathematical research? As in, the study of the social factors that influence (the formation of) research communities, guide their activity and how they produce mathematical knowledge?
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What are good books/articles about the sociology of mathematical research? As in, the study of the social factors that influence (the formation of) research communities, guide their activity and how they produce mathematical knowledge?
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Just released a small update to this paper, with more examples of diagrammatic reasoning in action. arxiv.org/abs/2305.08768 Thanks for all the suggestions. We could not include all of them yet, but will certainly consider them for future versions.
Curious about string diagrams and wondering where to start? Fabio Zanasi and I wrote an introduction designed to onboard CS students into our own research and offer a glimpse into current research on the topic. arxiv.org/abs/2305.08768 This is a first draft--feedback welcome!
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Curious about string diagrams and wondering where to start? Fabio Zanasi and I wrote an introduction designed to onboard CS students into our own research and offer a glimpse into current research on the topic. arxiv.org/abs/2305.08768 This is a first draft--feedback welcome!
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Robin Piedeleu retweeted
In this pre-print on “Causal Models in String Diagrams”, senior scientists Robin Lorenz and Sean Tull of @QuantinuumQC's Oxford-based Compositional Intelligence team, led by @coecke, describe a graphical language for classical causal reasoning. arxiv.org/abs/2304.07638
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I think few people realize that there was no compositional theory of digital circuits. 🤪 We fixed that. The sticking point was always "combinational feedback". But a little bit of domain theory can crack that nut.
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Here is a follow up post on causal inference: piedeleu.com/posts/diagramma… I derive the solution to @yudapearl's "new napkin problem" (as found in The Book of Why) without the do-calculus, using string diagrams.
I've been trying to teach myself basic causal inference using string diagrams (of course). I wanted to write a thread about it, but it got a bit too long, so I wrote a blog post instead: piedeleu.com/posts/diagramma…
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Hmm... After reading Chap. 3 of *Causality*, I'm just realising now the diagrammatic proof in my previous tweet (and blog post) is the translation of @yudapearl 's derivation of the frontdoor formula (without do-calculus):
I've been trying to teach myself basic causal inference using string diagrams (of course). I wanted to write a thread about it, but it got a bit too long, so I wrote a blog post instead: piedeleu.com/posts/diagramma…
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IIrc, in *The Book of Why* the authors write that deriving this formula without the do-calculus requires pages of calculations (wasn't there a $100 prize for it too?). Turns out it's not that long...
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I've been trying to teach myself basic causal inference using string diagrams (of course). I wanted to write a thread about it, but it got a bit too long, so I wrote a blog post instead: piedeleu.com/posts/diagramma…
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We are hosting a mini workshop on string diagrams in programming languages at the @HuaweiUK Coffee House in the University of Edinburgh @BayesCentre Program is here: linkedin.com/feed/update/urn…
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Robin Piedeleu retweeted
Replying to @TaliaRinger
I also find the analogy of consciousness as software (running on some sort of biological hardware) misleading and circular. All software is dependent on the prior reality of consciousness; without it there would be no software to speak of, just meaningless physical events
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When reading the "Philosophical Pass" below, I wonder why "relationships" between A and B are an asymmetric notion? Is there a symmetric version of cat. th., that places domains and codomains on equal footing? @StringDiagram, I think this is a question we asked ourselves long ago
i'm half way through Daniel Rosiak's "Sheaf Theory through examples" and I can't recommend it enough! lots of intuitive and illustrated examples, formalism constructed from simple all the way to more general constructions, with the bonus of short but sharp philosophical sections
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Our MFPS paper *A Complete Diagrammatic Calculus for Boolean Satisfiability*, with Fabio Zanasi and Tao Gu is on the arXiv: arxiv.org/abs/2211.12629
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We also show how we can also encode propositional logic programs (LPs). This is not a surprise since LPs are Horn clauses under the hood. But the encoding is still interesting because the trace plays a particular role:
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it allows us to define the consequence operator of a given LP in a very natural way, as the least-fixed point (via the trace) of its defining set of Horn clauses (aka its immediate consequence operator).
(For the initiated, the equational engine of resolution proofs is really the Frobenius law)
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