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What is a cut pair in partially ordered class?

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#terminology #order-theory
151
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Preserving relations and operations in an automorphism

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#abstract-algebra #order-theory #automorphism-group
207
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When is the Subgroup Lattice Graded?

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#combinatorics #group-theory #finite-groups #order-theory #lattice-orders
730
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Maximal and minimal element in preordered set

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#order-theory #lattice-orders
570
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Does 'a graph is a DAG $\iff$ there exists a topological sorting' hold for graphs with a non-finite number of nodes?

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#graph-theory #set-theory #order-theory #axiom-of-choice #sorting
234
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Dedekind cut/additional property

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#logic #order-theory #real-numbers #rational-numbers
67
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Functions between ordered sets

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#functions #order-theory
39
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Doubts in demonstrating Tarski's fixed-point theorem

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#elementary-set-theory #order-theory #fixed-points
156
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Is there a modified Cartesian product that accounts for order?

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#functions #set-theory #order-theory
44
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Example for a po-group

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#group-theory #order-theory
1k
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Suppose R is a partial order on A and S is a partial order on B. Define a relation T on A × B such that (a1, b1) T (a2, b2) iff a1 R a2 and b1 S b2.

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#solution-verification #relations #order-theory
98
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Rewriting a set of integers to get rid of repetition but keeping subset sum ordering

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#sequences-and-series #summation #order-theory #integers #sumset
94
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Proving isomorphism between two sets

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#order-theory
54
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Math theory that deals with ordered attr-value items?

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#order-theory #lattice-orders #vector-lattices
60
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Counterexample: linearly ordered sets for which there exists more than one isomorphism

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#proof-verification #elementary-set-theory #examples-counterexamples #order-theory

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