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Understanding an example about homomorphism

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#order-theory
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example of preorder on a set

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#order-theory
289
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Prove that for every countable ordinal $\alpha$, $\alpha\times[0,1)$ is order isomoprhic to $[0,1)$

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#elementary-set-theory #order-theory #ordinals
76
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Basic question about lattices

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#elementary-set-theory #order-theory #lattice-orders
73
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A completely revised question about ultrafilters

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#order-theory #boolean-algebra #lattice-orders
87
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well order in $M_1 \times M_2$

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#order-theory
638
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Hint for Number Theory question.

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#number-theory #order-theory #primitive-roots
242
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Using $\aleph_0$-categoricity in proof of completeness of DLO

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#logic #order-theory #first-order-logic
685
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Proof check. Well-ordering principle for the natural numbers.

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#proof-verification #induction #order-theory #well-orders
152
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Johnstone on constructing a complete Boolean algebra from a complete Heyting algebra

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#general-topology #logic #order-theory #boolean-algebra #constructive-mathematics
275
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Non-linear cyclic order of a field

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#group-theory #ring-theory #field-theory #order-theory
378
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Order isomorphic implies order preserving if and only if maps are identity maps

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#order-theory
162
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Group of order 30 sylow-subgroups

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#abstract-algebra #order-theory #sylow-theory
102
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Construct a complete and totally ordered field that does not have the least upper bound property.

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#real-analysis #field-theory #order-theory #real-numbers #cauchy-sequences
983
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How to draw Hasse's diagram for an infinite poset (real numbers)?

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#relations #order-theory

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