Abstract
The theory of Daizhan Cheng [1] replaces B={0,1} cu D={(10)},{(01)} and Boolean functions with logical matrices. Interesting and very important algebraical opportunities result, which can be used in systems theory. Our purpose is to give a hint on the theory of Cheng and its application to asynchronicity.
2010 Mathematics Subject Classification:94C10, 06E30, 95C05.

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