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Jul
25
revised Why are the sets $U_x$ disjoint in this proof of the non path-connectedness of the ordered square, $I_0^2$?
added 10 characters in body
Jun
20
revised How does one construct the Galois field extension $GF((2^2)^3)$?
deleted 4 characters in body
Jun
7
revised How do I show that the following is a basis for the weak topology on $X$?
added 6 characters in body
Oct
22
revised How do I show that $\kappa^+ \le 2^\kappa$ for every cardinal $\kappa$?
added 45 characters in body
Oct
21
revised How do I show that $\kappa^+ \le 2^\kappa$ for every cardinal $\kappa$?
edited body; edited title
Dec
5
revised Why is $\omega$ the smallest $\infty$?
deleted 76 characters in body
Dec
5
revised Why is $\omega$ the smallest $\infty$?
deleted 350 characters in body
Dec
5
revised Why is $\omega$ the smallest $\infty$?
added 917 characters in body
Dec
1
revised Is there a number that's right in the middle of this interval $(0, 1)$?
added 385 characters in body
Aug
24
revised If $\kappa$ is a cardinal, $\aleph$ is any $\aleph$-number, and if $\kappa\leq\aleph$ then $\kappa$ can be well ordered as well.
edited body
Aug
11
revised How can one prove that the union of two finite sets is again finite, without the use of arithmetic?
deleted 1 characters in body