An Introduction to Homological Algebra
《An Introduction to Homological Algebra》 · 第 419 页 · A.1.6
An object that is both initial and terminal is called a zero object.
An Introduction to Homological Algebra
《An Introduction to Homological Algebra》 · 第 419 页 · A.1.6
An object that is both initial and terminal is called a zero object.
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