An Introduction to Homological Algebra
《An Introduction to Homological Algebra》 · 第 47 页 · Definition
A short exact sequence is an exact sequence of the form \(0\to A\to B\to C\to0\).
An Introduction to Homological Algebra
《An Introduction to Homological Algebra》 · 第 47 页 · Definition
A short exact sequence is an exact sequence of the form \(0\to A\to B\to C\to0\).
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