👉 A homomorphy is a type of relationship in which one entity (the source) can be related to another entity (the target), but not vice versa. For example, if you have two types of books - fiction and non-fiction, and you want to borrow both, it would be possible for the librarian to lend them out to someone else, but they wouldn't be able to borrow each other. In mathematics, homomorphisms are a special type of map that preserve properties.