ON RETRACT EXTENSION OF ORDERED SET–A CONSTRUCTIVE POINT OF VIEW1

Daniel A. Romano*

Abstract


In this paper a concept of the retract extensions of ordered sets with apartness is given by Bishop’s constructive mathematics point of view.

Keywords


Constructive mathematics, order and anti-order relation, ideal and anti-ideal of ordered set, order isotone and order reverse isotone function, anti-order isotone and anti-order reverse isotone function.

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