给出了效应代数水平和的定义,借助于水平和,列举并讨论了一个效应代数可以具有许多个序列积.最后,证明了作为特殊的效应代数-正交代数,能够分解为一些子效应代数的水平和.
The paper focuses on the definition of horizontal sum of effect algebras, on the basis of which, it was enumerated and discussed that an effect algebra has many sequential products. It was finally shown that orthoalgebra, as a special effect algebra, can be decomposed to the horizontal sum of effect subalgebras.