Details

Autor(en) / Beteiligte

• Leicht, J. B.

Titel

Axiomatic Proof of J. Lambek's Homological Theorem

Ist Teil von

• Canadian mathematical bulletin, 1964-12, Vol.7 (4), p.609-613

Ort / Verlag

Cambridge, UK: Cambridge University Press

Erscheinungsjahr

1964

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A category with zero-maps is called "quasi-exact" in the sense of D. Puppe (see [4], page 8, 2. 4), if it satisfies the following axioms: (Q1) Every may f is a product f=με of an epimorphisrn εfollowed by a monomorphism μ (Q2) a) Every epimorphism ε has a kernel k = ker ε b) Every monomorphism μ has a cokernel γ = Coker ε, where Ker and Coker are characterized by the familiar universality properties (see [3], page 252, (1. 10) and (1. 11)).