Basic Category Theory
《Basic Category Theory》 · 第 13 页 · Example 1.1.8(b)
Given a set \(S\), the discrete category on \(S\) has object set \(S\), with the identity maps as its only maps.
Basic Category Theory
《Basic Category Theory》 · 第 13 页 · Example 1.1.8(b)
Given a set \(S\), the discrete category on \(S\) has object set \(S\), with the identity maps as its only maps.
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