Search Details

Word: preimage (lookup usage) (lookup stats)


Meaning:

Noun:

  • mathematics The set containing exactly every member of the domain of a function such that the member is mapped by the function onto an element of a given subset of the codomain of the function. Formally, of a subset ''B'' of the codomain ''Y'' under a function ?, the subset of the domain ''X'' defined by

Source: Wiktionary | Src Info »