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Jul
20
revised Showing $\dim T_0 ℝ^n = n$ using a derivation definition for the tangent space.
update, typo fixed
Jul
19
revised Are there noncontinuous derivations $C^1(X) → ℝ$?
edited body
Jul
19
revised Are there noncontinuous derivations $C^1(X) → ℝ$?
added 212 characters in body
Jul
19
revised Are there noncontinuous derivations $C^1(X) → ℝ$?
added 212 characters in body
Jun
23
revised A good book on humankind’s understanding of primes?
deleted 1 character in body; edited title
Jun
19
revised How to interpret material conditional and explain it to freshmen?
reworded the build-up to the questions
Jun
7
revised Remember the implicit function theorem
edited body
May
7
revised Connected spaces where all subsets are either open or closed
added 44 characters in body
May
7
revised Connected spaces where all subsets are either open or closed
added 155 characters in body
May
7
revised Connected spaces where all subsets are either open or closed
edited body
May
6
revised Why does an isomorphism need to be a homomorphism?
added 2 characters in body
Apr
30
revised If $H$ is a cyclic group of even order, $H$ has exactly two elements which square to $1.$
added 398 characters in body
Apr
27
revised Prove that if $A$ is both open and closed, $A=\mathbb R$.
edited tags
Apr
26
revised Show that $B/Q$ is integral over $A/P$
edited tags
Apr
17
revised Values of the Herbrand quotient
deleted 1 character in body
Apr
17
revised Values of the Herbrand quotient
fixed latex, spelling of “Herbrand”
Apr
6
revised the number of inversions in the permutation “reverse”
added 6 characters in body
Apr
6
revised the number of inversions in the permutation “reverse”
added 6 characters in body
Apr
6
revised If $F$ has characteristic $p$ and $f(x)=x^p-a\in F[x]$, then $f(x)$ is either irreducible over $F$ or $f(x)$ splits in $F$.
added 1 character in body
Apr
5
revised If $F$ has characteristic $p$ and $f(x)=x^p-a\in F[x]$, then $f(x)$ is either irreducible over $F$ or $f(x)$ splits in $F$.
expanded