👉 In the context of mathematics and logic, a colessor is a relation that has no elements in common with any other relation. This means that if you have two relations \(R\) and \(S\), then \(R \subseteq S\) if and only if for every element \(x\) in \(R\), there exists an element \(y\) in \(S\) such that \(x \in R\) implies \(y \in S\). For example, consider the following two