BCI—代数的外直积与外直和

THE OUTER DIRECT PRODUCT AND THE INTERNAL DIRECT SUM OF BCI-ALGEBRAS

本文在BCI-代数类中引进了直和的概念,并讨论了它的一些基本性质。此外,我们还证明了两个有关直积与直和的同构定理。

In this paper, we have introduced the outer direct sum into BCI-algebras and discussed its fundamental properties. In addition, we show some isomorphism theorems on the outer direct product and the internal direct sum.