nLab
horseshoe lemma

Context

Homological algebra

homological algebra

(also nonabelian homological algebra)

Introduction

Context

Basic definitions

Stable homotopy theory notions

Constructions

Lemmas

diagram chasing

Homology theories

Theorems

Contents

Idea

A basic lemma in homological algebra.

References

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.