(also nonabelian homological algebra)
Context
Basic definitions
Stable homotopy theory notions
Constructions
Lemmas
Homology theories
Theorems
A basic lemma in homological algebra.
The horseshoe lemma appears as lemma 2.2.8 in
Last revised on August 27, 2012 at 15:31:00. See the history of this page for a list of all contributions to it.