@EricWieser

Maintainer for #leanprover's Mathlib, @numpy, and #cocotb. Roboticist. PhD.

 UK
Joined November 2009
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Replying to @AriesSystems
@AriesSystems, does your @EditMgr support XeLaTeX? Your documentation says yes, but your instructions to result in pdflatex running instead of xelatex. Is your `%!TEX TS-program` parsing broken, or do individual publishers have the option to disable this feature?
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Oh no: xitter.cf/ThomasPellard/status/1… @ThomasPellard, did you ever solve this?
Thomas Pellard@ThomasPellard2 Jun 2021
I can't get Editorial Manager to compile my LaTeX file with xelatex (the suggested trick %!TEX TS-program = xelatex doesn't work). pdflatex is used instead, which throws an error. Why isn't there a simple way to chose which LaTeX engine is used? @EditMgr @AriesSystems
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Proud to have played a (rather minor) part in this: xitter.cf/leanprover/status/1729…
Lean
@leanprover28 Nov 2023
DeepMind has formalized a theoretical result related to AI safety in Lean. 😍 Paper: arxiv.org/abs/2311.14125. Code: github.com/google-deepmind/d…

Scalable AI Safety via Doubly-Efficient Debate

The emergence of pre-trained AI systems with powerful capabilities across a diverse and ever-increasing set of complex domains has raised a critical challenge for AI safety as tasks can become too...

arxiv.org
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Replying to @greateranglia
@greateranglia Your android app logged me out while I was trying to go through the ticket barriers the other day, and caused me to miss my train. Is there a reason it doesn't stay logged in forever?
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Also, once I am logged out, android doesn't know how to autofill my password from the default password manager. Can you add `android:autofillHints="password"` to the app to fix that?
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Pleased to announce that my paper about formalizing #GeometricAlgebra in the #leanprover (in collaboration with @_utensil_) has finally been published! link.springer.com/article/10…

Formalizing Geometric Algebra in Lean

Advances in Applied Clifford Algebras - This paper explores formalizing Geometric (or Clifford) algebras into the Lean 3 theorem prover, building upon the substantial body of work that is the Lean...

link.springer.com
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One particular mathlib growth of note; the future work in §8.1 of defining graded algebras is now complete (in collaboration with @XenaProject and @JujianZhang), and I've taught mathlib that the Clifford algebra is a ℤ₂-graded algebra (replacing §7.6): leanprover-community.github.…

clifford_algebra.graded_algebra - mathlib docs

The clifford algebra is graded by the even and odd parts.

leanprover-community.github.io
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A small update, from a little over a year later: xitter.cf/Clifford_ICCA/status/1…
CliffordAlgebras@Clifford_ICCA4 Jun 2023
The best paper award for ICCA12 has been awarded to Dr Eric Wieser @EricWieser from Cambridge Engineering @Cambridge_Eng. Many congratulations!
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Me: Hey, can we get #dobble? @FlyingTigerUK: no, we have dobble at home The dobble at home:
Four cards from a clone of dobble, none of which match. Every pair of cards is almost guaranteed to have a matching symbol in the original; not so much here....

ALT Four cards from a clone of dobble, none of which match. Every pair of cards is almost guaranteed to have a matching symbol in the original; not so much here....

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As a demonstrator (TA) at @Cambridge_Eng, I set up a coursework project/competition with @GitHubEducation's classrooms for the first time; the results were great, but getting everything working was a steep uphill battle. Some observations made along the way: (1/7)
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Finally, there'll be students who don't push any code until right before the deadline, and then argue that while failing autograding their software "works on their machine". Get your students using Codespaces from the very start to keep "their machine" out of the picture! (6/7)
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Will the same system be used again next year? I hope so, if the new TAs are familiar with github. But was it a net timesaving over getting TAs to try and run code in student-submit code in zip files, considering the time required to configure it al? Not even close! (7/7)
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Replying to @pfultz2
@pfultz2 Just found pfultz2.com/blog/2014/09/02/…, and it inspired stackoverflow.com/a/55252959…. Am I missing any obvious pitfalls by combining your `addr` and `make_function` helpers into a single `literal_lambda`?
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... Yes, I'm missing that it doesn't compile on anything but super-old GCC. Thanks for the interesting post!
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A: Your greatest weakness? B: Interpreting semantics of a question but ignoring the pragmatics A: Could you give an example? B: Yes, I could – at Zurich, Switzerland
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Sure looks like @VirginAtlantic is storing passwords in plaintext...
Hey @QFCGrocery, your website says my email address is invalid. It's not - I checked. Please show your web devs hackernoon.com/the-100-corre….
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