Let be a topos. A Lawvere-Tierney topology in is a morphism such that the following diagrams are commutative:
A topology in a topos gives rise to a new topos defined over .
Let be a topos. A Lawvere-Tierney topology in is a morphism such that the following diagrams are commutative:
A topology in a topos gives rise to a new topos defined over .