Fiber (mathematics)
Set of all points in a function's domain that all map to some single given point / From Wikipedia, the free encyclopedia
In mathematics, the fiber (US English) or fibre (British English) of an element under a function is the preimage of the singleton set ,[1]: p.69 that is
As an example of abuse of notation, this set is often denoted as , which is technically incorrect since the inverse relation of is not necessarily a function.