The PA (‘proof assistant’) has been instantiated with a hierarchy of theories with rules for VDM. These cover rules for inferring the well-definedness and the dynamic properties of VDM specifications. This chapter contains two case studies highlighting some of the capabilities of this special instantiation of the mural system. To prepare for the case studies, we first give a description of VDM specifications, and then describe how a few VDM constructs can be transformed into mural.
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