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Points in topoi of sheaves over distributive lattices
Published online by Cambridge University Press: 17 April 2009
Abstract
This article generalizes the well known theorem that the geometric morphisms from the category of sets to a category of set-valued sheaves on a topological space correspond to the irreducible components of the topological space. As irreducible components are not available in any topos more general than a spatial one, they are characterized in terms of filters of open sets - which are available in any topos. It is then seen that the theorem phrased in these terms generalizes to sheaves on any lattice with reasonable distributivity conditions.
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- Copyright © Australian Mathematical Society 1979