# category theory related issues & queries in MathXchanger

## Maximal variance problem

Updated August 14, 2020 18:20 PM

## Properties of congruence

Updated August 14, 2020 14:20 PM

## COVID and comorbidity

Updated August 14, 2020 12:20 PM

## Consider the group 𝐷15.

Updated August 14, 2020 11:20 AM

## Odd gaussian primes

Updated August 14, 2020 11:20 AM

## is $a = \{a\}$?

Updated August 14, 2020 09:20 AM

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