Cesare 🌸🔪 (he/him) @_cxesxr_

Ph.D. student in Set Theory, Universitat de Barcelona :) Joined September 2022

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Set Theory Talks @settheorytalks

12 months ago

Congatulations to Gabriel Goldberg for receiving the Hausdorff Medal for 2024

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julia🦄 @KamerynJW

a year ago

my favorite branch of maths is analysis (the study of L(R) under determinacy)

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Some theorems @CihanPostsThms

2 years ago

196884 = 196883 + 1 .

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_its_not_real_ @_its_not_real_

2 years ago

I hate being called "dad" or "cat dad" at the vet. Please stop. My cat is a cool dude. He is not my son. I am not his father. He is an animal.

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Joel David Hamkins @JDHamkins

2 years ago

Now with a great lower bound provided by user Alvoi. We're converging... mathoverflow.net/a/460136/1946

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Joel David Hamkins @JDHamkins

2 years ago

I answered a real-analysis question, which is really a set theory question in disguise. mathoverflow.net/a/460118/1946

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Anthony Bonato @Anthony_Bonato

2 years ago

Mathematicians are brutally honest people.

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Cesare 🌸🔪 (he/him) @_cxesxr_

2 years ago

just a random question that came up while talking to friends: does a pointwise definable model of ZFC have to satisfy V=L? @JDHamkins

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I feel so powerless and I am ashamed of some of the stuff I see in my timeline. If you think a 24 hour notice to "evacuate" (no guarantee of return) a region of 1.1 million (including disabled ppl etc.) over broken roads is fair, please unfollow me. This is genocide theatrics.

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Alp D. Yel @AlpDYel

2 years ago

@LongFormMath Didn’t she have a series in one of those books?

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Cesare 🌸🔪 (he/him) @_cxesxr_

2 years ago

Avui sóc aquí :)

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Some theorems @CihanPostsThms

2 years ago

Given sets A,B, write B^A for the set of functions A→B. Given cardinal numbers λ,κ, choosing sets A,B with |A| = λ, |B| = κ, define κ^λ := |B^A|. Theorem. 0⁰ = 1 .

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Clément Canonne (on Blue🦋Sky) @ccanonne_

2 years ago

Wait, did they REALLY go with \mathbb{X} as their logo? They cannot possibly be THAT lazy?

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Daniel Litt @littmath

2 years ago

@MBarany “The more tautologies you know, the more tautologies you know,” I always say.

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Some theorems @CihanPostsThms

2 years ago

@chmonke

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Daniel Litt @littmath

2 years ago

I have decided to apply the scientific method to mathematics. Having run 9,999 experiments, I am now quite confident that all positive integers are less than 10,000.

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Some theorems @CihanPostsThms

2 years ago

ZF has a model in which there is a sequence of sets (X_n : n∈ℕ) such that • |X_n| = 2 for every n∈ℕ. • The cartesian product of X_n's over all n∈ℕ is empty.