Table 3 Right neighborhoods of five reflexive relations
From: Approximations of some near open sets in ideal topological spaces
K | xkR1 | xkR2 | xkR3 | xkR4 | xkR5 |
|---|---|---|---|---|---|
x1 | {x1, x4} | X | X | {x1, x4, x5} | X |
x2 | X | { x2, x5} | { x2, x3, x4, x5} | X | { x2, x5} |
x3 | X | { x2, x3, x4, x5} | { x2, x3, x4, x5} | X | { x2, x3, x4, x5} |
x4 | {x4} | { x2, x3, x4, x5} | { x2, x3, x4, x5} | {x1, x4, x5} | { x2, x3, x4, x5} |
x5 | {x1, x4, x5} | {x5} | {x5} | {x1, x4, x5} | {x5} |