This review paper will report on some recent discoveries in the area of Formal Languages, chie y by F. Otto, G. Buntrock and G. Niemann. These discoveries have pointed out certain ...
We discuss the use of weakening and strengthening steps in calculational proofs. We present a metatheorem concerning monotonicity of positions in a formula that should have a more...
We define simple-regular expressions and languages. Simple-regular languages provide a necessary condition for a language to be outfix-free. We design algorithms that compute si...
Abstract. This article provides an overview over two constructive approaches to provably correct hard real-time code generation where hard real-time code is generated from abstract...