👉 Sequentialness refers to a property of mathematical operations or processes that are performed in order from left to right. In other words, if you perform operations on numbers one by one, starting with 1 and moving to 2, then 3, etc., the result will always be a number that is greater than or equal to the previous number. For example, if you start with 5 and add 4, you would get 9 (since 5 + 4 = 9).