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34 Answers

newest activity votes
7
What is the first cardinal number which is grearter than continuum?
5
What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
4
Does $\{\pi, \mathbb{R}\}$ exist?
4
Is 1+1 =2 a theorem?
3
A Math book with an inspiring ethos?
3
How would you explain why $e^{i\pi}+1=0$ to a middle school student?
2
Philosophy of a Mathematician.
2
What is the meaning of “independent events ” and how can we logically conclude independence of two events in probability?
2
Why are addition and multiplication commutative, but not exponentiation?
2
Is there a meaningful distinction between “inclusion” and “monomorphism”?
2
Disjunction: Why did the inclusive “OR” become the convention?
2
Unnecessary property in definition of topological space
2
A basic question on random variable
1
Why do we write proofs “forward?”
1
Why should the taxpayer pay the mathematician?
1
will computers replace (most) mathematicians?
1
Trying to understand Hilbert Spaces…
1
Show that $(A-B)-C \subseteq A-C$.
1
How can I explain $0.999\ldots=1$?
0
Confusion about GCH and the von Neumann universe construction
0
Minimum of $x^2 + 3x - 1$ on $[0,1]$ and $[-2,2]$
0
How do I prove the following: $f(S\cup T) = f(S) \cup f(T)$
0
Is the statement $A \in A$ true or false?
0
Possible to have a continuous sequence?
0
Is it possible to model a subcollection as a function?
0
Applications of cardinal numbers
0
Is there a good visual aid or picture to help understand openness and closedness?
0
A non-mathematician’s (programmer’s) question on infinity?
0
Romantic Math Equations
0
Zorn's Lemma $\equiv$ Axiom of Choice
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