Ciro Santilli @cirosantilli 40

In 2019, a paper proved that MTG is Turing complete with a legacy legal deck. Live demo with some hand waving: Video "I Built a COMPUTER in Magic: The Gathering by Because Science (2019)". As Ciro Santilli comments at: github.com/cirosantilli/cirosantilli.github.io/issues/42 this was an interest addition to the previous "indefinite infinite loop" e.g. as found in a Four Horsemen combo deck

Written mostly by Eric W. Weisstein.

Ciro once saw a printed version of the CRC "concise" encyclopedia of mathematics. It is about 12 cm thick. Imagine if it wasn't concise!!!

Infinite Napkin is the one-person open source replacement we needed for it! And OurBigBook.com will be the final multi-person replacement.

A master thesis reviewing its results: scholarworks.sjsu.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=5051&context=etd_theses

Contains the first sporadic groups discovered by far: 11 and 12 in 1861, and 22, 23 and 24 in 1973. And therefore presumably the simplest! The next sporadic ones discovered were the Janko groups, only in 1965!

Each $M_n$ is a permutation group on $n$ elements. There isn't an obvious algorithmic relationship between $n$ and the actual group.

TODO initial motivation? Why did Mathieu care about k-transitive groups?

Their; k-transitive group properties seem to be the main characterization, according to Wikipedia:Looking at the classification of k-transitive groups we see that the Mathieu groups are the only families of 4 and 5 transitive groups other than symmetric groups and alternating groups. 3-transitive is not as nice, so let's just say it is the stabilizer of $M_{23}$ and be done with it.

Bluetooth support: not enough RAM for it, though in principle its chip/transceiver could support it! microbit-micropython.readthedocs.io/en/v1.0.1/ble.html

Supported editors: microbit.org/code/

MicroPython web editor and compiler: python.microbit.org/v/2

Everything in this section is tested on the Micro Bit v1 from Micro Bit v1 unless otherwise noted.

Bibliography:

Public landing page: www.ox.ac.uk/admissions/undergraduate/courses/course-listing/mathematics-and-statistics

Handbooks: www.stats.ox.ac.uk/bammath-mathematics-and-statistics-student-resources (archive)

Public page: www.ox.ac.uk/admissions/undergraduate/courses/course-listing/mathematics-and-philosophy

Handbooks: www.maths.ox.ac.uk/members/students/undergraduate-courses/teaching-and-learning/handbooks-synopses (archive)

It is so close that we can notice its proper motion, and its distance to us will vary significantly across a few tens of thousands of years!

Corresponding undergrad: Mathematics and Computer science course of the University of Oxford

Public landing page: www.ox.ac.uk/admissions/undergraduate/courses/course-listing/mathematics-and-computer-science

A mixed cross department course with the Mathematical Institute of the University of Oxford.. Its corresponding masters is known as Oxford MMathCompSci. The handbook is together with the computer science one: Section "Computer science course of the University of Oxford".

Each elliptic space can be modelled with a real projective space. The best thing is to just start thinking about the real projective plane.

A unique projective space can be defined for any vector space.

The projective space associated with a given vector space $V$ is denoted $\mathbf{P}(V)$.

The definition is to take the vector space, remove the zero element, and identify all elements that lie on the same line, i.e. $\vec{v}=\lambda \vec{w}$

The most important initial example to study is the real projective plane.

A wiki that gathers mathematical proofs.

URL: proofwiki.org/wiki/Main_Page

MediaWiki-based.

This appears to be the creator: github.com/externl "Joe George".

It is fucking annoying!

Not just on browser close. Whenever Ciro Santilli pastes proton.me/ on the browser bar and click enter. Chromium 123.

More precisely: pasting mail.proton.me on the browser bar redirects to account.proton.me/switch each time. From there, selecting different accounts leads to different mail.proton.me/u/<UID>/inbox, e.g. mail.proton.me/u/41/inbox is my main one. If I paste mail.proton.me/u/41/inbox on the browser, then it works directly.

Once upon a time, the British Government decided to invest some 80 million into quantum computing.

Jeremy O'Brien told his peers that he had the best tech, and that he should get it all.

Some well connected peers from well known universities did not agree however, and also bid for the money, and won.

Jeremy was defeated. And pissed.

So he moved to Palo Alto and raised a total of $665 million instead as of 2021. The end.

Makes for a reasonable the old man lost his horse.

www.ft.com/content/afc27836-9383-11e9-aea1-2b1d33ac3271 British quantum computing experts leave for Silicon Valley talks a little bit about them leaving, but nothing too juicy. They were called PsiQ previously apparently.More interestingly, the article mentions that this was party advised by early investor Hermann Hauser, who is known to be preoccupied about UK's ability to create companies. Of course, European Tower of Babel.

Here we list public domain academic papers. They must be public domain in the country of origin, not just the US, which had generally less stringent timings with the 95 year after publication rule rather than life + 70, which often ends up being publication + 110/120. Once these are reached, they may be upload to Wikimedia Commons!