用泛性质定义了BCI -代数的直积，并证明了直积的存在性和唯一性。

The concept direct products of BCI-Algebra by using the universal property is introduced and uniqueness and existence of direct products of BCI-Alegbra are also proved.

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用泛性质定义了BCI -代数的直积，并证明了直积的存在性和唯一性。

The concept direct products of BCI-Algebra by using the universal property is introduced and uniqueness and existence of direct products of BCI-Alegbra are also proved.

youdao