Short five lemma
= Short five lemma
The <Five lemma> has a short form: in a commutative diagram of <short exact sequences>, if the maps on both outer terms are <isomorphisms>, then the map on the middle terms is an <isomorphism>.
= Short five lemma
The <Five lemma> has a short form: in a commutative diagram of <short exact sequences>, if the maps on both outer terms are <isomorphisms>, then the map on the middle terms is an <isomorphism>.