New posts in Idempotents

Models of a certain (weird) equational theory

What is difference between idempotent magma and unital magma?

Why does $Re=S^{-1}R$?

Existence of an idempotent element $\not = 1$ and $\not = 0$

Peirce decomposition of a ring: must the ideal generators be idempotent in characteristic 2?

Is $\mathbb{Z}[x]/(x^2+2x+1)$ isomorphic to a product of non-trivial rings?

Identity of a ring as two different sums of idempotents

Spectrum of idempotent element

Is there an idempotent element in a finite semigroup?

Idempotents in $\mathbb Z_n$