๐ Relation
= the way in which two objects are connected
Types
- ๐ญ Psychological Relation
- ๐ฌ Expression Relation
- ๐ Designation Relation
- ๐๏ธ Manifestation Relation
- ๐ Documentation Relation
- ๐ฃ Reporting Relation
- ๐๏ธ Physicoqualitative correllation
Properties
- Symmetrical: identical with its converse
- Nonsymmetrical: not symmetrical
- Asymmetrical: excluding its converse
- Reflexive: fulfilled in case of identity within its field
- Irreflexive: not reflexive
- Transitive: always holds also for the next member but one
- Nontransitive: not transitive
- Intransitive: nontransitive & never holds for the next member but one
- Connected: between two different members of the field either it or the converse always holds
- Sequence: Irreflexie & transitive & Connected
- Similarity relation: symmetrical & reflexive
- Equivalence: Similarity relation & transitive