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<i>F</i><sup>′</sup>-spaces and<i>z</i>-embedded subspaces
A completely regular Hausdorff space is an F f -space if disjoint cozero-sets have disjoint closures.Here the theory of prime ^-filters is applied to the study of F'-spaces.A ^-embedded subspace is one in which the zero-sets are all intersections of the subspace with zero-sets in the larger space.It is shown …