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Answers
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Magic trick based on deep mathematics
56
Why do we teach calculus students the derivative as a limit?
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Ways to prove the fundamental theorem of algebra
9
Why should one still teach Riemann integration?
2
What’s your favorite equation, formula, identity or inequality?
11
nontrivial theorems with trivial proofs
12
Interesting Calculus Questions/Exercises
13
Can a mathematical definition be wrong?
1
Blackbox Theorems
4
Writing papers in pre-LaTeX era?
24
The role of the mean value theorem (MVT) in first-year calculus.
12
Categories First Or Categories Last In Basic Algebra?
7
What does the adjective “natural” actually mean?
2
Spectral sequences: opening the black box slowly with an example
9
Proof synopsis collection
3
Examples where it’s useful to know that a mathematical object belongs to some family of objects
7
Counterexamples in algebraic topology?
0
Limits in category theory and analysis
1
Strengthening the Induction Hypothesis
4
Surprising and Useful Physical Intuition for Mathematical Objects
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Is there a reasonable way to refer to a 23 page article with 28 authors?
3
Deeper meanings of barycentric subdivision
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Computing homotopies
7
What is the intuition behind the Freudenthal suspension theorem
18
Is every real n-manifold isomorphic to a quotient of $\mathbb{R}^n$?
3
The Higman group
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Why does homotopy behave well with respect to fibrations and homology with respect to cofibrations?
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The definition of homotopy in algebraic topology
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$H_2$ of a simply connected Lie group vanishes
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homotopy of sphere maps
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