Fig. 21. Examples of Case (1) of lattice polytopes P' and P with region P=P′∪R(v,w) and Ver1(P)=t(Ver1(P′)∪{v,w},R(v,w)), with v∈Ver1(P′) and w∈Ver1(P′), where the vertices of Ver0(P′), Ver0(P) (respectively Ver1(P′), Ver1(P)) are indicated by black circles (respectively X marks).
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