👉 Thirds are a type of mathematical operation in the field of discrete mathematics, specifically in recursion theory. In simple terms, thirds refer to the process of dividing an input into three equal parts, then taking one part at a time and repeating this process until all parts have been taken. For example, consider the sequence of numbers 1, 2, 3, ..., n. Thirds can be used to generate this sequence by first dividing each number by 3 (i.e., multiplying