iiinova — where your digital self keeps evolving

Amar Hadzihasanovic @amarh.bsky.social · 06/03/2026

Lol I meant "sorry world" not "sorry you" but fair point

Amar Hadzihasanovic @amarh.bsky.social · 06/03/2026

Everything I've read from Wolchover has been excellent and find it hard to believe it would be due to carelessness, hopefully it was just time constraints + people not replying or not wanting to be named! Sorry it happened in an article involving me :(

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Amar Hadzihasanovic @amarh.bsky.social · 06/03/2026

I know for a fact the journalist spoke to one woman in ACT before me, and I made a point during our conversation of *only* referring her to other women in ACT. I don't know why none are mentioned in the column. I reject that this reflects the culture of the field.

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Amar Hadzihasanovic @amarh.bsky.social · 30/08/2025

Distilled water + the strongest spirit available in the region would be better than nothing while we figure out the rest

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Amar Hadzihasanovic @amarh.bsky.social · 30/08/2025

Could say I learnt this in Prester John's kingdom where they all do it

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Amar Hadzihasanovic @amarh.bsky.social · 30/08/2025

Not so sure about proving germ theory but maybe I could convince a bunch of doctors&obstetricians to wash their hands and see their success rate improve

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Amar Hadzihasanovic @amarh.bsky.social · 22/07/2025

(Also because of the nature of that exterior shot—flying through the window etc—I experienced a momentary "Lumière locomotive" moment, like, "damn, they're outside here")

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Amar Hadzihasanovic @amarh.bsky.social · 22/07/2025

It was very surreal for me to watch because not only the Boravians speak my language, but the one exterior scene in Boravia is Tallinn, a few hundred metres from the cinema where I was watching the film

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Amar Hadzihasanovic @amarh.bsky.social · 22/07/2025

Boravia is very slavic-coded (they actually speak serbian and the president is played very clearly—to me—as a serbian nationalist, although that may be an actor's injection), but that's probably just to complicate the Israel-coding it by making "also" a Russia/Serbia stand-in

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Amar Hadzihasanovic @amarh.bsky.social · 07/07/2025

I am looking for a PhD student to join us in Tallinn! #MathSky

I am looking for a PhD student to work with me on a project at the intersection of type theory, combinatorial topology, higher category theory, rewriting theory.
Starting date is asap; you need to have a Master's degree by the start of your PhD. The expected PhD study time at TalTech is 4 years. A PhD is a salaried position and is topped with an additional tax-free stipend from the department.
There is a vibrant community of category theorists, type theorists, and theoretical computer scientists at TalTech.
The PhD candidate would join the Compositionality group led by Pawel Sobocinski. We also work with the Logic and Semantics group led by Tarmo Uustalu.
Tallinn is a beautiful city on the Baltic coast. The TalTech campus is interspersed with forested areas, which cover a large part of the country. Estonia has generous parental leave, a great education system, and legal same-sex marriage.
Send a CV and an expression of interest to amar.hadzihasanovic@taltech.ee if you are interested.

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Amar Hadzihasanovic @amarh.bsky.social · 05/05/2025

My student's first solo paper! (And fourth overall in the space of a year🤩)

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Amar Hadzihasanovic @amarh.bsky.social · 03/05/2025

The 110th PSSL (Peripatetic Seminar on Sheaves and Logic) has started in Tallinn, the first ever to take place in Estonia! #MathSky

Enrico Vitale presenting a slide on torsion and torsion-free abelian groups

Marco Abbadini presenting a slide on problems of compact metric spaces

Georg Lehner presenting a "motivation" slide

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Amar Hadzihasanovic @amarh.bsky.social · 30/04/2025

I think the blueprint for these is a bully asking "why are you hitting yourself?", the "lie" that the victim is hitting themselves is not even supposed to be believed by anyone

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Amar Hadzihasanovic @amarh.bsky.social · 30/04/2025

Just signed a contract with CUP for my higher-categorical diagrams book 😊

Top part of the front page of a book draft.

Title: Combinatorics of higher-categorical diagrams
Author: Amar Hadzihasanovic - Tallinn University of Technology

First part of abstract: This is a book on higher-categorical diagrams, including pasting diagrams. It aims to provide a thorough and modern reference on the subject, collecting, revisiting, and expanding results scattered across the literature, informed by recent advances and practical experience with higher-dimensional diagram rewriting.

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Reposted by Amar Hadzihasanovic

International Campaign to Ban Landmines @minefreeworld.bsky.social · 29/04/2025

It may start with #landmines, but the bigger threat lies in the erosion of the laws of war. Hear from Jody Williams, on why the recent threat of withdrawals by some European nations from the Mine Ban Treaty endangers global norms and civilian lives. #ProtectMineBan

bit.ly

‘It makes me want to scream’: Nobel peace prize winner horrified by planned exits from landmine treaty

Plans by five Nato countries to pull out of life-saving agreement are ‘stupid’, says Nobel laureate Jody Williams

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Amar Hadzihasanovic @amarh.bsky.social · 29/04/2025

There's a comforting narrative about war crimes where it's bad people making decisions at the top, army follows orders, even when soldiers commit horrible crimes they themselves come back traumatised. SA breaks that because it implies some active revelling in the crimes, so complicity at all levels

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Amar Hadzihasanovic @amarh.bsky.social · 29/04/2025

I think sth makes people uncomfortable about SA being a "standard" thing that imperial armies & police do, like outside of fiction I've noticed that even people who think the Iraq invasion was a terrible war crime may wince at the idea SA from US&British troops would've been "condoned" at the top

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Amar Hadzihasanovic @amarh.bsky.social · 23/04/2025

Is it just what people expect? Is it because baths are the upper-class method of washing, and showers are meant to be a quick rinse for the masses?

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Amar Hadzihasanovic @amarh.bsky.social · 23/04/2025

Either the pressure is terrible, or it's in a weird corner, or it doesn't drain properly, or it has random bursts of scalding hot water, etc

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Amar Hadzihasanovic @amarh.bsky.social · 23/04/2025

I don't think I've ever had a good shower in England. Every shower in the country seems to be broken or annoying in its own way. I don't know what it is. Every other country I've been to seems to have figured showers out.

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Amar Hadzihasanovic @amarh.bsky.social · 19/04/2025

I suspect for conferences, sometimes, it's to resolve clusters of consonants in the acronym, like how OOPSLA (fun) without "and applications" is OOPSL (unreadable)

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Amar Hadzihasanovic @amarh.bsky.social · 18/04/2025

It feeds into what is the patriarchy's best and most successful argument. Any so-called "feminist" whose obsession is stranger danger and single-sex spaces is the patriarchy's best friend

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Amar Hadzihasanovic @amarh.bsky.social · 18/04/2025

Where then, by accepting the bargain, they become property of their patron who is (as well known) much more likely to be the actual danger. This is one reason why the GC propaganda focussing on strange men in bathrooms goes hand in hand with the far right...

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Amar Hadzihasanovic @amarh.bsky.social · 18/04/2025

Something I think is often misunderstood, is that the idea that men are inherently dangerous to women is not anti-patriarchy, but in fact foundational to patriarchy... the bargain of patriarchy is: to protect them from the multitude of strange men, women need the patronage of a "trusted" man...

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Amar Hadzihasanovic @amarh.bsky.social · 18/03/2025

If adversaries use inhumane weapons, that's all the more reasons to not use them---otherwise what's the difference? I know what landmines have done to my native country, I hope my adoptive country won't make this shameful choice @tsahkna.bsky.social

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Amar Hadzihasanovic @amarh.bsky.social · 16/03/2025

Higher Topos Theory is the Infinite Jest of mathematics

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Amar Hadzihasanovic @amarh.bsky.social · 25/02/2025

"Chu spaces over a set" would come the closest to this pattern, I think?

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Amar Hadzihasanovic @amarh.bsky.social · 25/12/2024

A few days ago, coming back to my hotel room in Manchester, I found a Lego piece on the floor. I kept it because you never know. Today, my kid got a Lego set for Christmas, bought by my partner several days later near Bristol. There was one piece missing in the box: the one I had found.

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Amar Hadzihasanovic @amarh.bsky.social · 02/12/2024

Obviously it would still be possible to introduce biases via framing, but naively it seems to me like it would achieve some of the goals of an adversarial approach with less risk of sources cutting one off, as long as their self-reports are represented accurately

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Amar Hadzihasanovic @amarh.bsky.social · 02/12/2024

That is, is it feasible to have a style of reporting founded on 1. checking (within reason) verifiable facts, but 2. never questioning self-reported motivation, yet 3. extending the same courtesy to all parties involved in a story, no matter who they are ?

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Reposted by Amar Hadzihasanovic

George Monbiot @georgemonbiot.bsky.social · 28/11/2024

1. You think you’ve seen it all. You really have not. I’m a hard-bitten journalist of 39 years’ standing, but details of this story made me shout, weep and slap my head. This week’s column + 🧵 www.theguardian.com/commentisfre...

theguardian.com

This society lauded a police officer who lied and cheated and ruined lives. At last, a reckoning | George Monbiot

As a ‘spy cop’, Bob Lambert callously betrayed innocent women. The official inquiry must ask harsh questions of him – and the state, says Guardian columnist George Monbiot

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Amar Hadzihasanovic @amarh.bsky.social · 22/11/2024

If X is a set, there is a swap function s: X x X -> X x X, defined by s(x,y) := (y,x). A binary relation can be seen as an injective function r: R -> X x X, it's symmetric if and only if s∘r = r. A binary operation is a function m: X x X -> X, it's commutative if and only if m∘s = m.

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Amar Hadzihasanovic @amarh.bsky.social · 20/11/2024

The programme and attendees of the First International Topological Conference in Moscow, 1935, are quite unbelievable arxiv.org/abs/1903.02065

Group photo from the First International Topology Conference in Moscow, 1935, black and white.
First row, seated, left to right: four men (K. Kuratowski, J. P. Schauder, S. Cohn-Vossen, P. Heegaard), one woman (J. A. Różańska), then four more men (J. W. Alexander, H. Hopf, P. S. Aleksandrov, P. A. Solov’yov).
Second row, standing, left to right: eleven men (E. Čech, H. Whitney, K. Zarankiewicz, A. W. Tucker, S. Lefschetz, H. Freudenthal, F. I. Frankl, J. Nielsen, K. Borsuk, D. M. Sintsov, L. A. Tumarkin), then one woman (M. A. Nikolaenko), then three more men (V. V. Stepanov, E. R. van Kampen, A. N. Tikhonov).
Text in Russian in the bottom left corner: Группа первой международной топологической конференции, Москва, 4-10 сентября 1935 г.

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Amar Hadzihasanovic @amarh.bsky.social · 15/11/2024

He's named after Catiline so stuff in the plot needs to mirror facts that happened to Catiline (=being tried for sleeping with a vestal virgin) but also he is Actually Good so all the bad stuff needs to have been fake. I'm afraid that's the logic

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Amar Hadzihasanovic @amarh.bsky.social · 14/11/2024

Hello, attempting to relocate here. I'm a mathematician & an asst prof at TalTech, working on things adjacent to higher category theory, combinatorial topology, and rewriting theory. 👋

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