LOTOS is a speciication language, but it is not very useful without a design methodology that describes the process from initial speciication construction to implementation. In this paper we discuss the tools to support such a design process. The language, method and tools are beginning to be used in realistic applications, but the research on them continues. This paper concentrates on the curr...

Automated termination provers often use the following schema to prove that a program terminates: construct a relational abstraction of the program’s transition relation and then show that the relational abstraction is wellfounded. The focus of current tools has been on developing sophisticated techniques for constructing the abstractions while relying on known decidable logics (such as linear a...

This paper is an attempt to examine the main theorems of social choice theory from the viewpoint of constructive mathematics. We examine the Gibbard–Satterthwaite theorem [A.F. Gibbard, Manipulation of voting schemes: a general result, Econometrica 41 (1973) 587–601; M.A. Satterthwaite, Strategyproofness and Arrow’s conditions: existence and correspondence theorems for voting procedures and soc...

This qualitative research examines propinquity across two grocery shopping situations – real (in-store) and virtual (online). Examining how the same consumers shop for the same or similar commodities provides quasi-experimental conditions to examine differences in shopping behaviour. Convergent interviews with 15 respondents identified that consumer reasons – expectations of convenience, trust ...

We present a logic for reasoning about LOTOS behaviours which allows properties involving repeated patterns over actions and data to be expressed The semantics of the logic is given with respect to sym bolic transition systems Several motivational examples are included The reader is assumed to have passing familiarity with LOTOS

the synthesis of nanocrystalline fe3al powder by mechanical alloying as well as the structural ordering of the synthesized fe3al particles during the subsequent thermal analysis were investigated. mechanical alloying was performed up to 100 hours using a planetary ball mill apparatus with rotational speed of 300 rpm under argon atmosphere at ambient temperature. the synthesized powders were cha...