  Amongst those legal theorists taking an interest in the role of coherence in legal reasoning, there is general agreement both that the coherence in question must amount to more than logical consistency amongst propositions (see Kress 1984; MacCormick 1984; Marmor 1992 &amp; 2005; Alexy &amp; Peczenik 1990) and that it is not clear from many coherence accounts exactly what this something more amounts to (see Kress 1984; Peczenik 1989; Marmor 1992). MacCormick 1984 views coherence in terms of unity of principle in a legal system, contending that the coherence of a set of legal norms consists in their being related either in virtue of being the realisation of some common value or values, or in virtue of fulfilling some common principle or principles. Raz 1994a also characterises coherence in law in terms of unity of principle. On his view, the more unified the set of principles underlying those court decisions and legislative acts which make up the law, the more coherent law is.