Table 12 Tabular representation for lower approximations of \(\hat{\mathbb {S}}_1\)
\(\hat{\mathbb {S}}\) | \(\hat{\zeta }_1\) | \(\hat{\zeta }_2\) | \(\hat{\zeta }_3\) | \(\hat{\zeta }_4\) | \(\hat{\zeta }_5\) | \(\hat{\zeta }_6\) | \(\hat{\zeta }_7\) | \(\overleftarrow{\hat{\Upsilon }} (\mathbb {O}_i)\) |
|---|---|---|---|---|---|---|---|---|
\(\hat{\mathbb {O}}_1\) | 0 | 0 | 0 | 0 | o.3 | 0 | 0.8 | \(\overleftarrow{\hat{\Upsilon }} (\mathbb {O}_1)\) |
\(\hat{\mathbb {O}}_2\) | 0.2 | 0 | 0.5 | 0 | 0 | 0 | 0 | \(\overleftarrow{\hat{\Upsilon }} (\mathbb {O}_2)\) |
\(\hat{\mathbb {O}}_3\) | 0 | 0.5 | 0 | 0.8 | 0 | 0 | 0 | \(\overleftarrow{\hat{\Upsilon }} (\mathbb {O}_3)\) |