Zulip Chat Archive

Stream: new members

Topic: Lucas-Lehmer converse


Alastair Irving (Jun 20 2025 at 10:59):

I see that in NumberTheory.LucasLehmer the converse, necessity, direction is a TODO. If noone is currently working on this I was thinking of proving it. It doesn't look to difficult for my first contribution to Mathlib.

Kenny Lau (Jun 20 2025 at 11:00):

Welcome to mathlib!

Kevin Buzzard (Jun 20 2025 at 12:56):

Give it a try!

Alastair Irving (Jun 24 2025 at 16:06):

I've done this in #26272. It was rather longer than I'd expected.

Kenny Lau (Jun 24 2025 at 16:19):

Congratulations! :tada:


Last updated: Dec 20 2025 at 21:32 UTC