User talk:Remag12

exceptions to fourth isomorphism theorem
Are there exceptions to the fourth isomorphism theorem? I suspect they are monoids, semigroups, or structures less restricted.

orphan
An article you recently created, titled mathematical n system, is an "orphan", i.e. no other articles link to it. If you know of others that ought to link to it, could you add those links? Michael Hardy (talk) 17:04, 18 February 2013 (UTC)

August 2013
Hello, I'm BracketBot. I have automatically detected that [//en.wikipedia.org/w/index.php?diff=568877643 your edit] to Jacobson radical may have broken the syntax by modifying 1 "[]"s. If you have, don't worry, just [ edit the page] again to fix it. If I misunderstood what happened, or if you have any questions, you can leave a message on [//en.wikipedia.org/w/index.php?action=edit&preload=User:A930913/BBpreload&editintro=User:A930913/BBeditintro&minor=&title=User_talk:A930913&preloadtitle=BracketBot%20-%20&section=new my operator's talk page].
 * List of unpaired brackets remaining on the page:

Thanks, BracketBot (talk) 02:21, 17 August 2013 (UTC)
 * * As Herstein s Non Commutative rings shows Jacobson radical theory does not require the ring to be unital.