👉 In mathematics, a "distal" element is an element that is not directly adjacent to another element in a list or set. This concept arises from the fact that each element in a set can be considered as part of its own "chain", and if we remove one element from the set, it will no longer form a chain. Therefore, elements within a list are called distal if they cannot be removed without breaking the chain. In programming, a distal element is an element that appears
