One of Satoshi's email addresses, it's how he made the First public announcement of Bitoin on first public announcement of Bitcoin on 2008-10-31.
At some point later on vistomail.com was discontinued and acquired by a super dodgy dude, Alex Elbanna, so it hasn't been Satoshi for a while.
Demo under: nodejs/sequelize/raw/many_to_many.js.
NO way in the SQL standard apparently, but you'd hope that implementation status would be similar to UPDATE with JOIN, but not even!
- PostgreSQL: possible with
DELETE FROM USING: stackoverflow.com/questions/11753904/postgresql-delete-with-inner-join - SQLite: not possible without subqueries as of 3.35 far: stackoverflow.com/questions/24511153/how-delete-table-inner-join-with-other-table-in-sqlite, Does not appear to have any relevant features at: www.sqlite.org/lang_delete.html
ORM
- Sequelize: no support of course: stackoverflow.com/questions/40890131/sequelize-destroy-record-with-join
As per classification of finite fields those must be of prime power order.
Video "Finite fields made easy by Randell Heyman (2015)" at youtu.be/z9bTzjy4SCg?t=159 shows how for order . Basically, for order , we take:For a worked out example, see: GF(4).
- each element is a polynomial in , , the polynomial ring over the finite field with degree smaller than . We've just seen how to construct for prime above, so we're good there.
- addition works element-wise modulo on
- multiplication is done modulo an irreducible polynomial of order
Originally by Keyhole Inc., which the nbecame Google Maps, but the format seems standardized and has non-Google support, so should be OK.
Notable examples:
Structure of a Gram-negative bacteria
. Source. 
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