Fraction, Restriction and Range Categories from Non-Monic Classes of Morphisms

S. N. Hosseini, A. R. Shir Ali Nasab, W. Tholen

For a composition-closed and pullback-stable class S of morphisms in a category C containing all isomorphisms, we form the category Span(C,S) of S-spans (s,f) in C with first "leg"…