∅∩∅=?, ∅-∅=? empty set operation, how to solve?

Описание: there is the empty set in set theory. so we have to deal with the operations on empty sets.
∅∩∅ and ∅-∅ is the representative operations on empty sets.
what is the answer?
how can we solve the problem?
this video shows the solution.
#emptyset #operation #intersectioncontroller

introduction to the intersection of an empty sets.
why we feel difficult?
three ways to find the answer to the intersection of empty sets
the difference set of empty sets
relationship between intuition and logic.