Louigi Addario-Berry
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louigi.bsky.social
Louigi Addario-Berry
@louigi.bsky.social
360 followers 370 following 250 posts
Math prof (probability), McGill U; workplace organizer. He/his.
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louigi.bsky.social
I think my graph theory students liked my antifascist frog costume. It was really hard to hold the chalk without opposable thumbs.
Someone wearing an inflatable frog costume standing in front of an empty chalk board with their back to the room. Someone wearing an inflatable frog costume standing in front of a full board, facing the room, with their arms in the air. The chalk board has part of a proof of Brooks' theorem on it.
October 31, 2025 at 3:46 PM
louigi.bsky.social
The McGill Association of University Teachers just endorsed the Academic and Cultural Boycott of Israel, with over 90% of voters supporting the motion.
Be it resolved that we, the members of MAUT, endorse the Academic and Cultural Boycott of Israel. Be it further resolved that we call upon McGill’s administration to take all necessary steps to implement the boycott of Israeli academic institutions, while ensuring that the boycott applies to institutional partnerships and agreements, not individual Israeli academics. This resolution will sunset in two years unless it is renewed or extended by the membership of MAUT at another General Meeting. Resolution to Endorse the Academic and Cultural Boycott of Israel Whereas, the International Association of Genocide Scholars has declared that “Israel’s policies and actions in Gaza meet the legal definition of genocide in Article II of the United Nations Convention for the Prevention and Punishment of the Crime of Genocide (1948)”;1 Whereas, the International Court of Justice has found that Israel’s actions plausibly constitute violations under the Genocide Convention, and leading international organizations, including Human Rights Watch and Amnesty International, have described Israel as maintaining a system of apartheid;2 Whereas, in May 2025 the United Nations documented that Israel’s campaign of scholasticide has destroyed every university in Gaza and killed at least 5,479 students (as of April 2024) and over 190 university academic staff (as of May 2025);3 Whereas, the complicity of Israeli academic institutions in denying Palestinian human rights has been comprehensively documented;4 Whereas, McGill has current exchange agreements with four Israeli universities,5 as well as coordinating a three-week study trip with Hebrew University Business School (under the banner of the McGill-Israel Entrepreneurship Program);6 Whereas, every one of these partner universities is a pillar of Israel’s system of apartheid, colonization, and military occupation directed against the Palestinian people in contravention to international law;7 Whereas, in 2005, 170 Palestinian civil society organizations called for boycott, divestment, and sanctions against Israel;8 Whereas, that call has been interpreted by the Palestinian Campaign for the Academic and Cultural Boycott of Israel (PACBI) to call for a boycott of Israeli academic institutions, not individual Israeli academics;9 Whereas over the past two years, at least 18 University Faculty Associations in Canada passed motions calling for boycott, divestment and sanctions against the state of Israel given its ongoing military assault on Gaza;10 Whereas CAUT has reaffirmed that faculty associations have the right to hold political and even partisan positions and to pass motions calling for boycott and/or divestment and/or sanctions of the State of Israel;11 Whereas in 1985, McGill became the first Canadian university to announce it would divest from companies with ties to Apartheid South Africa,12 and in 2006 McGill divested from companies in Myanmar;13 Whereas in response to Russia’s invasion of Ukraine, MAUT examined its financial portfolio in view of divestment from Russian companies;14 Whereas, MAUT has a history of calling upon foreign governments to end their campaigns against universities and to protect academic freedom;15 Whereas, as a faculty association, MAUT has a duty to stand in solidarity with scholars whose academic freedom and right to education are under attack; therefore,
October 10, 2025 at 5:59 PM
louigi.bsky.social
Really unfortunate that this sign was needed.
A sign that reads “svp ne pas se brosser les dents dans l’abreuvoir merci”. The (very small)water fountain in question, with the sign above it.
September 22, 2025 at 10:45 PM
louigi.bsky.social
Making streets safer for pedestrians has been a site of progressive political struggle for many years! One of the first acts of the Black Panther Party was to act as crossing guards at an Oakland street corner where multiple children had been killed, shaming the city into installing a traffic light.
A sign reading "On August 1, 1967, This stoplight was installed as a result of a community initiative spearheaded by the Black Panther Party."
September 5, 2025 at 4:44 PM
louigi.bsky.social
Mary Boole needlepoint on my office wall.
A needlepoint reading "Only dead mathematics can be taught where the attitude of competition prevails: living mathematics must always be a communal possession. M.E. Boole"
August 18, 2025 at 7:25 PM
louigi.bsky.social
Pretty stoked about this new book
A copy of the book “Dictionnaire historique du Plateau Mont-Royal”
August 2, 2025 at 6:06 PM
louigi.bsky.social
This seems bad.
CNBC headline: Trump fires commissioner of labor statistics after weaker-than-expected jobs figures slam markets. By Jeff Cox
August 1, 2025 at 7:26 PM
louigi.bsky.social
Does anyone want any of these math books? I’ll send them to you for the cost of shipping.
A. Weil and A. Borel collected works A bunch of Bourbaki volumes. Assorted texts including Serre’s Corps locaux
July 30, 2025 at 1:29 PM
louigi.bsky.social
A bike pedal half buried in a crack in the pavement
July 27, 2025 at 11:49 AM
louigi.bsky.social
Lucky Montreal alley photo
A raccoon standing on a gravel roof, with a graffitied brick wall behind it. The wall is half in light and half in shadow.
July 9, 2025 at 2:41 AM
louigi.bsky.social
At the Ottawa marathon last month there was a spectator holding up a sign that said “don’t worry, if you lose the race, you can always run again in Alberta”.
A screen capture of a news article featuring a photo of a guy in a suit, and the title “MP Damien Kursk officially resigns, paving way for Poilievre’s byelection”
June 18, 2025 at 3:54 AM
louigi.bsky.social
Remind me why I moved away from the Gulf islands, again?
Three Garry oaks in front of sea and sky Left half: a pitted cliffside covered in barnacles. Right half: sea and sky Right half: a pitted cliffside covered in barnacles. Left half: sea and sky, with an overhanging fir tree A curiously pitted rock face
June 15, 2025 at 12:34 AM
louigi.bsky.social
It’s better to have Lieb and Loss than never to have Lieb at all.
The cover of “Analysis, Second Edition” by Elliot H. Lieb and Michael Loss
May 27, 2025 at 4:51 AM
louigi.bsky.social
Shared with permission.
The new pope has an undergrad degree in mathematics. Finally, the Catholic Church can stop focusing on sin and move on to cos.
May 10, 2025 at 10:24 PM
louigi.bsky.social
Free Mahmoud Khalil protests at UC Berkeley today.
A crowd protesting in front of the Berkeley university library
March 12, 2025 at 4:58 AM
louigi.bsky.social
We have to revive this kind of movement energy. Anti-war, African liberation, voter registration, survival conference. 10,000 free full bags of groceries with LARGE EGGS IN EVERY BAG.
A poster for a June 24, 1972 Black Panther Party event at the Oakland Auditorium. Featuring speakers Bobby Seale, Elaine Browne, Ron Dellums. “Plus top entertainment”
March 8, 2025 at 12:21 AM
louigi.bsky.social
This is good, I guess, in the context of a country where bumper stickers are the primary form of political expression.
The back of a Tesla with a bumper sticker that reads “I bought this before Elon Musk went crazy”
March 4, 2025 at 1:17 AM
louigi.bsky.social
Me giving the finger to a cyber truck.
March 1, 2025 at 4:41 AM
louigi.bsky.social
A t-shirt depicting artemisia gentileschi’s « Judith beheading holofernes » with the words « girl dinner » written in evil goth lettering.
February 23, 2025 at 3:14 AM
louigi.bsky.social
An illustration from the 1960’s from the black panther party. The image is of a black woman holding objects representing a number of the panthers’ social programs, including shoes and a bag of food. She is wearing a nurse’s hat that reads “people’s free health clinic”. Next to the image is a text which reads ‘HUEY TOLD ME THAT THE PEOPLE ARE RESPONSIBLE FOR MAKING REVOLUTION. BUT WHILE IN THE PROCESS OF MAKING THE REVOLUTION, HUEY SAYS, "WE THE PEOPLE ARE THREATENED WITH GENOCIDE, BECAUSE RACISM AND FASCISM ARE RAMPANT, NOT ONLY IN OUR COUNTRY BUT THROUGHOUT THE WORLD." HE SAYS, "WE INTEND TO CHANGE ALL THAT. BUT IN ORDER TO CHANGE IT, THERE MUST BE TOTAL TRANSFORMATION. BUT UNTIL SUCH TIME THAT WE CAN ACHIEVE THAT TOTAL TRANSFORMATION, WE MUST EXIST. IN ORDER TO EXIST, WE MUST SURVIVE; SO THEREFORE WE NEED A SURVIVAL KIT." SO THAT WE CAN GROW UP HEALTHY WITH A MIND THAT CAN BE FUNCTIONAL AND CREATIVE. ALL POWER TO THE PEOPLE YOUR COMRADE IN ARMS’
February 16, 2025 at 6:01 AM
louigi.bsky.social
Black Panther Party Museum exhibit: survival until revolution. About the history of the BPP’s service to the people programs. Tonight was opening night so we got to hear from old panthers about the history of the party. Exhibit open for a while so go.
Berets representing Panthers killed by police in the period 1969-71 Berets representing Panthers killed by police in the period 1969-71. There were 32 in all I think A page with the slogan “survival pending revolution” from a book collecting black panther party artwork A list of the party’s community service programs. I think there were 66.
February 14, 2025 at 5:40 AM
louigi.bsky.social
Drooping white flowers with green dots at the tips of the petals, in front of a brown wooden fence.
February 7, 2025 at 5:34 AM
louigi.bsky.social
Who wrote the USPS list of kinds of objects one might want to mail - Borges?
USPS retail postage price calculator. The list of options for "what are you sending" reads: * cremated remains * live animals other than day-old poultry * day-old poultry * hazardous materials
January 27, 2025 at 4:15 PM
louigi.bsky.social
A you-couldn't-make-it-up story about DoorDash's corporate image-washing, from Leah Hunt-Hendrix and Astra Taylor's "Solidarity".
Quotation from the book: "In early 2021, business was booming for the delivery app DoorDash, which went public on the New York Stock Exchange at a valuation of $72 billion. Fear of the deadly and fast-spreading coronavirus led to a surge in online orders, for which the company charged participating restaurants a hefty 25 percent commission. At the same time, drivers were paid a subminimum wage, in part because of the company’s relentless and costly lobbying efforts against legislation that would properly classify their workforce as employees rather than “contractors.” After coming under scrutiny for their unethical business practices, DoorDash launched a campaign promising to donate a dollar of every sale to the beloved children’s television show Sesame Street, up to a limit of $1 million. They then paid $5.5 million for a Super Bowl ad featuring Sesame Street’s iconic cast to trumpet their alleged generosity and burnish their public image."
January 27, 2025 at 12:29 AM
louigi.bsky.social
bsky.app/profile/nobo...
January 7, 2025 at 12:44 AM