(Plane tilings) can be discrete.Logical formLearned from2 sentences. A (symmetry group) can be discrete.Logical formLearned from2 sentences. A condition of discretenes may cause an existence of a fundamental region of a discrete (symmetry group).Logical formLearned from2 sentences. (Similarity symmetry groups) can be discrete.Logical formLearned from2 sentences. Friezes can be with discrete (symmetry groups).Logical formLearned from2 sentences. Discrete (symmetry groups) of friezes may be derived.Logical formLearned from2 sentences. Discrete (symmetry groups) may be interpreted.Logical formLearned from2 sentences. Motifs may correspond to discrete (symmetry groups).Logical formLearned from2 sentences. A space can be discrete.Logical formLearned from2 sentences. An introduction can be to a subject of discrete mathematics.Logical formLearned from2 sentences. A locations. can be discrete.Logical formLearned from2 sentences. A hazard can be discrete.Logical formLearned from2 sentences. An (interest payment) can be discrete.Logical formLearned from2 sentences. (Problem areas) can be discrete.Logical formLearned from2 sentences. An event can be discrete.Logical formLearned from2 sentences.