Why can't we divide by 0? Is it just a arbitrary construct created by mathematicians? Couldn't we solve some problems by providing a definition to the division of zero?
The reason we cannot divide by zero is because it is undefined in mathematics. Division is the inverse of multiplication, and when we divide a number by zero, we are essentially asking, "What number multiplied by zero gives us the original number?" This question has no answer, as any number multiplied by zero always gives us zero. 

Furthermore, dividing by zero can lead to contradictions and inconsistencies in mathematical reasoning. For example, if we allow division by zero, we could prove that any number is equal to any other number, which clearly does not make sense.

While it may seem like an arbitrary construct, the fact that we cannot divide by zero is a fundamental rule in mathematics that forms the basis of many other concepts and calculations. It is not possible to provide a consistent and meaningful definition for division by zero that does not lead to contradictions or inconsistencies.