Anki Deck Changes

Commit: ef7f5444 - add card for 0 in A* group

Author: obrhubr <obrhubr@gmail.com>

Date: 2026-01-15T10:11:37+01:00

Changes: 1 note(s) changed (1 added, 0 modified, 0 deleted)

Note 1: ETH::DiskMat

Deck: ETH::DiskMat
Note Type: Horvath Cloze
GUID: OZ:K%_?#ON
added

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Note did not exist

New Note

Front

ETH::1._Semester::DiskMat::5._Algebra::5._Rings_and_Fields::2._Units_and_the_Multiplicative_Group_of_a_Ring
\(0\) is not in \(A^*\) where {{c2::\(A\) is a multiplicative algebra like \(\mathbb{Z}_{25}\)}}. Justification Included

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ETH::1._Semester::DiskMat::5._Algebra::5._Rings_and_Fields::2._Units_and_the_Multiplicative_Group_of_a_Ring
\(0\) is not in \(A^*\) where {{c2::\(A\) is a multiplicative algebra like \(\mathbb{Z}_{25}\)}}. Justification Included

\(\gcd(0, n) = n\) and not \(1\)!
Field-by-field Comparison
Field Before After
Text \(0\)&nbsp;is {{c1::not}} in&nbsp;\(A^*\)&nbsp;where {{c2::\(A\)&nbsp;is a multiplicative algebra like&nbsp;\(\mathbb{Z}_{25}\)}}.&nbsp;<i>Justification Included</i>
Extra \(\gcd(0, n) = n\)&nbsp;and not&nbsp;\(1\)!
Tags: ETH::1._Semester::DiskMat::5._Algebra::5._Rings_and_Fields::2._Units_and_the_Multiplicative_Group_of_a_Ring
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