Classification of Finite Spaces of Orderings
Classification of Finite Spaces of Orderings
1. Introduction. A space of orderings will refer to what was called a āset of quasi-orderingsā in [ 5 ]. That is, a space of orderings is a pair ( X, G ) where G is an elementary 2-group (i.e. x 2 = 1 for all x ā G ) ā¦