Formal Definitions of Fraud
نویسندگان
چکیده
In this paper, we give formal analyses of notions of fraud for the aim of verification of trade procedures. A fraud possibility is seen as an undesirable property of a trade procedure which its specification should not satisfy. It is argued that fraud may occur (in a trade procedure) when an agent violates an obligation and he/she also deceives another agent (a controller) about the fulfilment of that obligation. The formal definitions are given using modal operators for obligation, action and belief.
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