# What is the difference between equal set and equivalent set

Example, A is ( 123 ), B is ( 213 ).

A is equal to B

In a equivalent set, the number of the elements of the sets are equal.

Example, A is ( 12345 ), B is ( 67890 ).

n(A) is 5, n(B) is 5.

n(A) is equal to n(B).