
170 Polytope Projects
An interesting case study corresponds to the separation of four
compounds evaluated by four properties and their complementary (Berry
and Sigayret 2012).
Table 9.3 shows a formal context for separations-4 compounds 4
properties.
Table 9.3 Formal context for separations-4 compounds 4 properties.
Compound a b c d
1 1101
2 0110
3 1000
4 0010
Table 9.4 shows the complementary formal context for separations-4
compounds 4 properties.
Table 9.4 Complementary formal context for separations-4 compounds 4 properties.
Compound
αβγδ
1 0010
2 1001
3 0110
4 1101
This corresponds to replacing of “1” by “0” and “0” by “1” in the tables
of properties. ...