# [SOLVED] Ideal products.

#### ENRIQUESTEFANINI

Hi:
Reading a book on ring theory, I find the symbol aRb, where R is a ring and a, b are elements of R. Can somebody give me a definition of aRb? I'd be very grateful if somebody sends one. Thanks for reading.

#### NonCommAlg

MHF Hall of Honor
Hi:
Reading a book on ring theory, I find the symbol aRb, where R is a ring and a, b are elements of R. Can somebody give me a definition of aRb? I'd be very grateful if somebody sends one. Thanks for reading.
$$\displaystyle aRb=\{arb: \ r \in R \}.$$

ENRIQUESTEFANINI

#### ENRIQUESTEFANINI

Ideal products.

$$\displaystyle aRb=\{arb: \ r \in R \}.$$
Thank you very much.