Content-Type: text/shitpost

Subject: Necklaces and bracelets
Path: you!your-host!walldrug!epicac!thermostellar-bomb-20!twirlip!am!plovergw!ploverhub!shitpost!mjd
Date: 2018-12-02T20:24:56
Newsgroup: talk.mjd.necklaces-and-bracelets
Message-ID: <712d4baf53bbf2e1@shitpost.plover.com>
Content-Type: text/shitpost

Here's an alternative mnemonic: a bracelet symmetry is modulo the dihedral group !!D_n!!, and “bracelet” begins with a “D”, whereas a necklace symmetry is modulo the cyclic group !!Z_n!!, and “necklace” begins with a “Z”.