👉 A letris is a type of mathematical object in the field of combinatorics. It is defined as an object that can be used to represent and manipulate various types of permutations, such as the permutation of sets or the combination of elements from a set.
In mathematics, a letris is typically represented using a table with rows and columns representing the number of ways to arrange a given number of objects in each row. The rows are labeled by the different objects that need to be arranged,
aletris