All public logs

Combined display of all available logs of Apeirology Wiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 16:35, 3 September 2023 RhubarbJayde talk contribs created page Bijection (Created page with "A bijection between two sets, \(X\) and \(Y\), is a "one-to-one pairing" of their elements. Formally, it is a function \(f: X \to Y\) (which can be encoded as a subset of \(X \times Y\)) so that: * Different elements of \(X\) are sent to different elements of \(Y\). * Every element of \(Y\) has some element of \(X\) which is sent to \(Y\). The first property is known as injectivity, or being 1-1, and can be formally be written as \(f(x) = f(y)\) only if \(x = y\). The...") Tag: Visual edit