Syndeticity

Values within affordances were ranked and assigned metric values. Standardized canonical discriminant function coefficients of .835, .515, and .298 for complexity, concreteness, and syndeticity.

For topological recurrence we need a different notion of largeness for subsets of S, namely that of syndeticity. A subset of E of N is said to be syndetic if it has bounded gaps. Equivalently, E C N is syndetic if N is the union of finitely many shifts.