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Validity of: ◻◇◻p → ◇p in transitive frames

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#logic #proof-theory #modal-logic #relations
580
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What's this notation about partitions?

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#elementary-set-theory #relations #set-partition
137
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logically prove: $R$ is Relation $\to R\subseteq\operatorname{dom}(R)\times \operatorname{cod}(R)$

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#elementary-set-theory #proof-verification #proof-writing #relations #alternative-proof
167
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Transitivity of a relation (unique)

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#relations
2k
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Pairwise disjoint sets in a relation

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#relations
91
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Why is $1 \over x$ a function?

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#functions #relations
33
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What do you call the domains of a relation?

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#elementary-set-theory #relations
442
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Prove a relation to be reflexive by induction

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#discrete-mathematics #induction #computer-science #relations
249
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Finding the number of order-preserving functions

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#elementary-set-theory #relations
48
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a general relation having maximal element for any subset

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#terminology #relations
43
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proving that a relation is transitive over R->R

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#discrete-mathematics #relations
135
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Name for when $R \cdot S \subseteq S \cdot R$?

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#notation #relations
417
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$R=\{(a,a),(b,c),(c,b)\}$ why is it not antisymmetric

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#discrete-mathematics #relations
2k
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Find the smallest equivalence relation containing the pairs (a, b), (a, c), (d, e), and (b, f)

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#discrete-mathematics #relations #equivalence-relations
66
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What is a set whose elements consist of all relations from A to B? and a couple more questions

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#discrete-mathematics #relations #equivalence-relations #set-partition

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