GLOOM 发表于 2025-3-25 04:31:59
http://reply.papertrans.cn/48/4742/474129/474129_21.pngaffinity 发表于 2025-3-25 08:34:18
Homomorphisms,ent. The way of making this identification precise is via the notion of an isomorphism. More generally, two algebras may bear a structural resemblance to one another, even though they do not have exactly the same intrinsic structure. Homomorphisms provide a tool for establishing structural similaritSEMI 发表于 2025-3-25 14:48:50
http://reply.papertrans.cn/48/4742/474129/474129_23.pngLiability 发表于 2025-3-25 17:50:00
http://reply.papertrans.cn/48/4742/474129/474129_24.png发源 发表于 2025-3-25 23:57:11
Direct products,perations, to define the requisite operations coordinatewise. Relation algebras furnish an instance of this procedure. For relation algebras, products come in two flavors: the standard Cartesian (or external) product and an internal version of this product. These two versions are but two sides of thAXIS 发表于 2025-3-26 03:04:29
http://reply.papertrans.cn/48/4742/474129/474129_26.png尽责 发表于 2025-3-26 06:08:03
http://reply.papertrans.cn/48/4742/474129/474129_27.pngMelatonin 发表于 2025-3-26 11:25:03
Special elements,mmetric relations, transitive relations, and equivalence relations. In subsequent sections, we look at abstract versions of properties associated with various types of ideal elements, with rectangles, and with functions.Irrepressible 发表于 2025-3-26 13:21:42
http://reply.papertrans.cn/48/4742/474129/474129_29.pngFILLY 发表于 2025-3-26 18:28:02
http://reply.papertrans.cn/48/4742/474129/474129_30.png