Knight, T W - In: Environment and Planning B: Planning and Design 26 (1999) 4, pp. 477-501
In the paper "Shape grammars: six types", the issue of decidability in relation to shape grammars was introduced. Decidability concerns, first, the identification of different types of grammars, and, second, the answerability or solvability of questions about these types of grammars. The first...