# Thread: [SOLVED] Ideal products.

1. ## [SOLVED] Ideal products.

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.

2. Originally Posted by 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.
$\displaystyle aRb=\{arb: \ r \in R \}.$

3. ## Ideal products.

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