nLab
flat resolution lemma

Context

Homological algebra

homological algebra

and

nonabelian homological algebra

Context

Basic definitions

Stable homotopy theory notions

Constructions

Lemmas

diagram chasing

Homology theories

Theorems

Contents

Idea

The flat resolution lemma in homological algebra say that the Tor-derived functor, which a-priori is defined via projective resolutions, may also be computed via resolution by flat modules.

References

This appears for instance as lemma 3.2.8 in

and in lemma 19.17.9 and following in

Revised on November 6, 2013 09:09:51 by Anonymous Coward (146.6.139.27)