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Lean

@leanprover · Seattle · joined 13 Apr 2018

Lean is a dependently-typed programming language and theorem prover.

12 264Followers
52Following
823Posts total
43.3KViews on collected posts

Against accounts of the same size

6 posts from the last 90 days, next to the 10K–100K follower range. shown widely, but few of those viewers react.

Median views6 964this account964median for 10K–100K
Reach, %56.78%this account3.25%median for 10K–100K
Engagement, %1.41%this account2.01%median for 10K–100K
MetricThis accountMedian for 10K–100KRatio
Median views per post6 9649647.22×
Reach (views ÷ followers)56.78%3.25%17.5×
Engagement rate1.41%2.01%0.70×

Others in this range →   Compare with another account →   How these benchmarks are built →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

9.7K13 Aug
7K18 Aug
4.8K19 Aug
5.2K21 Aug
9.7K25 Aug
6.9K

Last 6 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

2.41%13 Aug
1.84%18 Aug
0.76%19 Aug
2.31%21 Aug
0.68%25 Aug
0.98%

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 2.01%.

What the audience does

Likes71.2%558 in total
Reposts9.9%78 in total
Replies0.9%7 in total
Quotes1.1%9 in total
Bookmarks16.8%132 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.

Latest posts

We're excited to be working with @SAIRfoundation on the Lean Kernel Challenge. More info below. #LeanLang #LeanProver 6.9K views · 59 likes · 8 reposts · 1 replies 25 Aug 2026 · Open on X →
SAIR's next competition has arrived: the Lean Kernel Challenge, co-organized with @leanprover. Improve the performance of verified computation in the Lean 4 kernel that the whole community can benefit from. Stage 1 pre-registration is open. Official launch: Sep 15. 9.7K views · 55 likes · 9 reposts · 1 replies 25 Aug 2026 · Open on X →
The Lean FRO Year 4 Part 1 roadmap, covering September 2026 through February 2027, is now published. It sets out our priorities for Lean and ecosystem support for the first half of our fourth year of operations. 🔗 Read the full roadmap here: https://t.co/yUwvQZPn2N #LeanLang ht 5.2K views · 93 likes · 21 reposts · 3 replies 21 Aug 2026 · Open on X →
See Kim Morrison's (@tqft) post and resources below about the newly announced Palomar Registry. 4.8K views · 30 likes · 6 reposts · 0 replies 19 Aug 2026 · Open on X →
Great news for the Lean ecosystem! We're thrilled that CSLib has the formal backing of @RenPhilanthropy. 7K views · 117 likes · 11 reposts · 0 replies 18 Aug 2026 · Open on X →
The Lean Kernel Arena is a public benchmarking site for Lean proof checkers. Anyone can build an independent Lean kernel. The Arena runs them all against the same suite: valid proofs each should accept, invalid proofs each should reject, plus timing and memory on Mathlib and the 9.7K views · 204 likes · 23 reposts · 2 replies 13 Aug 2026 · Open on X →

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