Categories – Exercise 1
[Two-out-of-three property] Let f: A→B and g: B→ C be two morphisms. If $$g$$ and $$gf$$ are isomorphisms, then so is f$$. Solution: There exists...
[Two-out-of-three property] Let f: A→B and g: B→ C be two morphisms. If $$g$$ and $$gf$$ are isomorphisms, then so is f$$. Solution: There exists...