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We define the notion of irreducible polyhedral representation of a normal space making use of approximate inverse systems. This generalizes the concept of irreducible polyhedral expansions introduced in 1937 by Freudenthal for metric compacta and generalized to uniform spaces by Isbell in 1961. We show that every normal space X has an irreducible polyhedral representation whose dimension is dim X and whose weight is weight (X). Approximate inverse systems were first introduced by S. Mardesicdoi:10.2307/2048064 fatcat:x5jxatstljazjgcbnqfvybg67e