CoViD-19: Mathematics Takes a Bullet (John H. Conway)

A collection of links to learn more about John H. Conway, who passed away recently.

All About: Definition of Sets

A detailed discussion of #Definition of #Sets, including #examples, #counterexamples, #quizzes. Useful for #GRE #CSIR #JRF #NET #GATE #Mathematics Aspirants

Non-Cyclic Abelian Groups

It is well known fact that every cyclic group is abelian. But the converse is not true always. i.e. There exists groups that are abelian but not cyclic. Uncountable abelian groups The groups such as and are abelian groups. Since any infinite cyclic group is isomorphic to and hence is countable, the above mentioned groups…