Table 5 A table of six particulars (A-F) together with some of their properties (1–5) and their classification according to different concepts of grouping (based on [56])

instances (particulars)

A

B

C

D

E

F

properties 1

x

–

x

x

x

–

properties 2

x

x

x

x

–

–

properties 3

x

–

x

x

x

–

properties 4

x

x

x

–

x

x

properties 5

x

–

x

–

x

–

essentialistic class membership

yes

no

yes

no

no

no

cluster class membership (minimum quorum 3)

yes

no

yes

yes

yes

no

cluster class membership (minimum quorum 4)

yes

no

yes

no

yes

no

fuzzy set membership

5/5

2/5

5/5

3/5

4/5

1/5