Question

19 19 century was the who was the first mathematician who gave the concept of sets​

Answer 1

Answer:

Dedekind

Step-by-step explanation:

Dedekind also came up with the notion, now called a Dedekind cut which is now a standard definition of the real numbers. He showed that any irrational number divides the rational numbers into two classes or sets, the upper class being strictly greater than all the members of the other lower class.

Answer 2

Answer:

dedekind mark my answer as brainlist