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When it says at least with same

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#discrete-mathematics
448
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Recurrence for Number of Words of Length $r$ over $[n]$ with no three consecutive letters the same

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#combinatorics #discrete-mathematics #recurrence-relations
136
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Why does the Fibonacci sequence seem to have such a rich theory?

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#sequences-and-series #combinatorics #elementary-number-theory #discrete-mathematics #recurrence-relations
105
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An urn with three kinds of balls... and a weird constraint!

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#probability #combinatorics #elementary-number-theory #discrete-mathematics
88
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Inverse z transform - help understand left sided region

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#discrete-mathematics
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Prove by induction that $n^4-4n^2$ is divisible by 3 for all integers $n\geq1$.

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#elementary-number-theory #discrete-mathematics #induction #divisibility #integers
172
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Random Variable Distribution (Successive Removal from List)

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#probability #combinatorics #discrete-mathematics #probability-distributions #coupon-collector
60
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How many 3 letter words possible with the word Abacus?

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#combinatorics #discrete-mathematics #permutations #combinations
184
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How do i find all possible ways of obtaining a total value of 40 cents from 5 cent and 8 cent stamps?

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#elementary-number-theory #discrete-mathematics
989
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Finding a longest path on a weighted graph - solvable deterministically and in polynomial time?

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#discrete-mathematics #graph-theory
140
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Consider the next succession and prove by induction

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#sequences-and-series #discrete-mathematics #induction
562
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Diagram Hasse partial with maximal-minimal -greatest-least element

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#discrete-mathematics
66
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recursive equation with a

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#discrete-mathematics
110
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What is the meaning of Z/2017Z in abstract algebra?

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#discrete-mathematics
48
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singleton part and element part in abstract algebra

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#discrete-mathematics

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