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

4/14/2025, 5:02:54 PM

Public

A key milestone in the Equational Theories Project: after just over 200 days, the last of the 4694^2 = 22033636 possible implications between our test list of 4694 equational laws has now been formalized in Lean https://teorth.github.io/equational_theories/dashboard/ . The amount of code, data, and text needed to accomplish this was rather substantial and diverse: https://leanprover.zulipchat.com/#narrow/channel/458659-Equational/topic/Project.20language.20stats/near/512058557

The main outstanding task is now to write the paper, which is currently in an incomplete draft forrm: https://teorth.github.io/equational_theories/paper.pdf

Equational Theories Project

Mapping out the relations between different equational theories of Magmas

teorth.github.io · Equational Theories Project

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