\begin{definition}[Definition:Cancellable/Also known as]
An object that is '''cancellable''' can also be referred to as '''cancellative'''.
Hence the property of '''being cancellable''' is also referred to on {{ProofWiki}} as '''cancellativity'''.
Some authors use '''regular''' to mean '''cancellable''', but this usage can be ambiguous so is not generally endorsed.
Category:Definitions/Cancellability
\end{definition}