Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

José A. Alonso @Jose_A_Alonso@mathstodon.xyz

11/14/2025, 6:22:14 PM

Public

An introduction to formal real analysis (Lecture 18: Rearrangements). ~ Alex Kontorovich. https://youtu.be/VI63OwWMxJM #ITP #LeanProver #Math

Lecture 18, Introduction to Formal Real Analysis, Rutgers University, Prof. Kontorovich, 11/11/2025

Follow along with the notes:https://alexkontorovich.github.io/2025F311H/Lecture18.pdfInfinite Summation is not Commutative!; Absolute Convergence implies Con...

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