Duncan Ramage's user avatar
Duncan Ramage's user avatar
Duncan Ramage's user avatar
Duncan Ramage
  • Member for 7 years, 1 month
  • Last seen this week
72 votes

Is infinity 'larger' than 1?

40 votes
Accepted

What is the purpose of a function being surjective?

26 votes
Accepted

If an integer $m$ is odd how can it be proven that its square would be odd?

21 votes

How is $\ln$ pronounced by English speakers?

20 votes
Accepted

Uncountable sets in countable models of ZFC

18 votes

Beginner abstract question. Why does a group operation of an element on itself return 1 or e?

17 votes
Accepted

Is it possible, in "intuitive set theory" to have a set whose elements are subsets of the set?

10 votes
Accepted

If every object in math can be reduced to sets, how are tuples explained via sets?

9 votes
Accepted

What is the cofinality of $\omega+1$?

8 votes

Between which two integers does $\sqrt{2017}$ fall?

8 votes
Accepted

Can exponential functions be thought of as eigenfunctions for the derivative operator?

7 votes

Mathematical adjectives that bear famous mathematician's names

6 votes

Center of a lie Algebra is an ideal

6 votes

Non-textbook Math book recommendation to read to my kids

6 votes

What exactly is $\mathbb{Z_n}$?

5 votes

Probability of a Full House for five-card hand.

5 votes

Explain precisely why a continuous surjection $f: [0,1] \mapsto [1, \infty)$ does / does not exist

5 votes
Accepted

Compactness in subspaces

5 votes
Accepted

Is $\int_a^xf(t)dt$ differentiable iff $f$ is continuous?

5 votes

Sum of vector subspaces

5 votes

Does Cantor's Theorem and the Continuum Hypothesis imply discrete levels of infinity?

5 votes
Accepted

Terminology of "commuting" diagrams.

4 votes

A polynomial has the same remainder when divided by $x+k$ or $x-k$; what is $k$?

4 votes
Accepted

Is it true that for all $U$, $W$ non-empty sets in $\mathbb{R}^{n}$ if $U \cup W=\mathbb{R}^{n}$ then $U=\mathbb{R}^n$ or $W=\mathbb{R}^{n}$

4 votes

Definitions of a proper embedding

4 votes

What do the different topologies of the set {a,b} mean?

4 votes

Prove or disprove $ \ (A \times A) - (B \times B) = (A-B) \times (A-B)$

4 votes
Accepted

Please say this integral is correct of $f(x) = e^{x^2}$

4 votes

Erroneously approximating a continuous object with a limit of a discrete one.

4 votes
Accepted

Is this vector field conservative? My team thinks it is conservative, I don't?

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