physical concept

Deductions

• physical concept is for example aspect of sound ⇐ (aspect of sound is a physical concept), (is a is inverse of is for example)
• physical concept is subclass of entity ⇐ (physical concept is subclass of abstract entity), (abstract entity is subclass of entity), (is subclass of is a transitive relation)
• physical concept is subclass of abstract entity ⇐ (physical concept is subclass of concept), (concept is subclass of abstract entity), (is subclass of is a transitive relation)
• aspect of sound is a physical concept ⇐ (sound concept is subclass of physical concept), (aspect of sound is a sound concept)