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15
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Are two quadratic forms equivalent over $\mathbb{Q}$

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#linear-algebra #equivalence-relations #matrix-rank #quadratic-forms #bilinear-form
25
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Equivalence relations - Cardinality of a subset

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#modular-arithmetic #modules #equivalence-relations
178
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Difficulty using the (co)limit formulae to construct the $n$-(co)skeleton left and right Kan extensions for truncated simplicial objects

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#category-theory #equivalence-relations #limits-colimits #simplicial-stuff #kan-extensions
71
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How to prove the axioms of equivalence relation without using example but theoretically or using logic?

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#abstract-algebra #elementary-set-theory #logic #equivalence-relations #axioms
83
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Trying to determine if this relation is reflexive, symmetric, antisymmetric and transitive

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#equivalence-relations
59
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Defining a Equality relationship when it already exists? I'm going crazy

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#abstract-algebra #relations #equivalence-relations
143
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Topology of reals quotient by integers AND irrationals is indiscrete?

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#general-topology #equivalence-relations #quotient-spaces
225
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A particular relation $\star$ is defined on $\mathbb{N}$ by $x\star y$ iff $\exists k\in\mathbb{Z}$, $y=5^k x$. Is $\star$ an anti-symmetric relation?

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#discrete-mathematics #relations #order-theory #equivalence-relations
41
Views

Quotient spaces-vector spaces

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#functions #vector-spaces #equivalence-relations #quotient-spaces #vector-space-isomorphism
270
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Distinct Equivalence Classes of Congruence Modulo 4

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#relations #equivalence-relations
39
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From equivalence relation to function

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#functions #equivalence-relations
40
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Algorithm for sorting by equivalence relation

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#combinatorics #algorithms #equivalence-relations #sorting
46
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Introductory equivalence relations xRY

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#elementary-set-theory #equivalence-relations
68
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Conjugacy classes of an element that are the same

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#abstract-algebra #group-theory #equivalence-relations #intersection-theory #transfer-theory
71
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Finding the unique representative that lies on the unit circle in an equivalence class of a given equivalence relation.

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#equivalence-relations

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