Mon, 23 Dec 2013 16:29:43 +0100 haftmann prefer Y_of_X over X_to_Y;
Mon, 23 Dec 2013 16:59:56 +0100 panny merge
Mon, 23 Dec 2013 15:30:31 +0100 panny prevent ambiguity when mutual recursion maps a datatype to itself, which yielded wrong definitions in some cases (e.g. nat)
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