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BigbearZzz's user avatar
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BigbearZzz
  • Member for 8 years, 10 months
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  • United Kingdom
62 votes

Is there a simple function that generates the series; $1,1,2,1,1,2,1,1,2...$ or $-1,-1,1,-1,-1,1...$

57 votes

What does a triple integral represent?

27 votes

Why is $\log(1+e^x) - \frac{x}{2}$ even?

24 votes

What are some easy but beautiful patterns in Pascal's Triangle?

23 votes

What's the difference between "relation", "mapping", and "function"?

21 votes

Unions and intersections: $(A \cup B = A ∪ C) \land (A \cap B = A ∩ C) \implies B = C.$

16 votes
Accepted

Why "countability" in definition of Lebesgue measures?

16 votes

What is wrong in this proof: That $\mathbb{R}$ has measure zero

14 votes
Accepted

Is this possible? AB- BA=I

14 votes
Accepted

Totally bounded and closed implies compact??

13 votes

Why do we need compactness?

11 votes

Why do they call it base 10?

11 votes

Show that there does not exist a strictly increasing function $f : \mathbb Q \to \mathbb R$ such that $f(\mathbb Q) = \mathbb R$.

9 votes

why area of triangle changes when measured as components of triangles?

8 votes

How can something be greater than $100\%$?

8 votes

Is $\emptyset$ bounded? Why then $\inf \emptyset = \infty$ is reasonable?

8 votes

Examples of problems that are easier in the infinite case than in the finite case.

8 votes

Explaining Green's Theorem for Undergraduates

8 votes

Why are all k-cells convex?

8 votes

If A is infinite, does there have to exist a subset of A that is equivalent to A?

8 votes

Definition of Infinite Nesting?

7 votes
Accepted

Assuming convergence of the following series, find the value of $\sqrt{6+\sqrt{6+\sqrt{6+...}}}$

7 votes

Is $f(x) = e^x$ a Surjective function?

7 votes
Accepted

Is it true that every totally bounded set in a metric space is compact?

7 votes
Accepted

union of closed balls centered around points of a compact set

7 votes
Accepted

Can a function be neither convex nor concave everywhere?

6 votes
Accepted

Proving the set of polynomials is dense in $C^{1}[0,1]$

6 votes
Accepted

Let $X \subseteq \Bbb Q^2$. Suppose each continuous function $f:X \to \Bbb R^2$ is bounded. Then $X$ is finite.

6 votes

Intuitive explanation of $L^2$-norm

6 votes
Accepted

What's the midpoint of $[a,b)$?

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