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`

Terence Tao @tao@mathstodon.xyz

8/28/2025, 10:58:48 PM

Public

Recently, the erdosproblems.com site run by Thomas Bloom has enabled a discussion forum for each of the problems on the site.

As a result of some discussions I had with Stijn Cambie and Vjeko Kovac on this forum, we were able to come up with a short elementary solution to a previously open problem on the site: https://www.erdosproblems.com/forum/thread/379 . In fact the proof is sufficiently short and elementary that it was straightforward to formalize in Lean! https://github.com/teorth/analysis/blob/main/analysis/Analysis/Misc/erdos_379.lean

Erdős Problems #379 - Discussion thread

www.erdosproblems.com

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