The inverse of a binary relation R, denoted as R-1, is the set of all ordered pairs (y,x) such that (x,y) is an element of R.
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.