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Mathematics
Bob Marley's user avatar
Bob Marley's user avatar
Bob Marley's user avatar
Bob Marley
  • Member for 4 years, 1 month
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12
Taking the inverse (not the reciprocal) of both sides of an inequality
May 12
8
Confusion on using "unless" more than once in proposition
May 20
6
Inclusion-Exclusion confusion: Meeting exactly one friend in lunch time during a semester
May 12
6
$79 \neq n_1^4+\cdots + n_{18}^4\ $ [$79$ is not a sum of eighteen $4$'th powers of integers]
May 26
4
Why is this a wrong use of the product rule (for combinatorics) for finding number of onto functions?
May 10
4
Proving $a_{n} = \lfloor \sqrt{2n} + \frac{1}{2} \rfloor$ for sequence $1, 2, 2, 3, 3, 3, ...$ where positive integer $k$ is repeated $k$ times.
Jun 16
3
Confusion on reading multiple ways of p implies q
May 12
2
Determining the witnesses (constants $C_0$ and $k_0$) when showing $c^n \in O(n!)$ ($c > 1$)
Jun 28
2
Proving (p → r) ∨ (q → r) ≡ (p ∧ q) → r
Jun 3
1
Confusion for algorithm for finding (a div d) and (a mod d), where a is an integer and d positive integer.
Jul 15