👉 In the context of mathematics and logic, "attainers" are terms used to describe operations that can be performed on mathematical expressions. These operators allow for a wide range of transformations or substitutions that can modify the value of an expression without altering its structure.
For example, in mathematical notation, when you have an equation such as `x + y = 3`, the operator `+` is often used to represent addition. Similarly, when you see an equation like `2
x`, it's