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1d
revised homeomorphism between zero-dimensional Hausdorff and two-point space
Minor MathJax fixes.
2d
revised Prove that one of $n$ consecutive integers must be divisible by $n$
Typo.
2d
revised Recognizing linear orders embeddable in $\Bbb R^2$ ordered lexicographically
Corrected oversight noted in comments.
2d
revised Simplifying Sum
added 155 characters in body
Apr
15
revised Proving initial segment in Q
MathJax.
Apr
15
revised Simplification of a double sum involving partial sums of harmonic series
Resized square brackets.
Apr
15
revised Is $ (A × B) ∪ (C × D) = (A ∪ C) × (B ∪ D)$ true for all sets $A, B, C$ and $D$?
Added diagram.
Apr
15
revised does a lattice have a minimal item
added 184 characters in body
Apr
14
revised First uncountable ordinal
added 186 characters in body
Apr
14
revised When this operation is associative?
Changed square brackets to floor notation.
Apr
12
revised Prove if $x$ is greatest lower bound of $U$ then $x$ is the least upper bound of $B$
Typo.
Apr
12
revised Is this statement about open sets in induced topologies true in general?
deleted 52 characters in body
Apr
12
revised Is this statement about open sets in induced topologies true in general?
added 112 characters in body
Apr
12
revised Confusion about Lusin's Theorem.
Spelling of Lusin, Lebesgue, and a little formatting while I was at it.
Apr
12
revised Compactness result
Added translation, fixed a few misspellings.
Apr
11
revised Request For An Example Of A Continuous Map Relative To The Box Topology On $\mathbb{R}^J$, When $J$ Is Infinite
Added the rest of the second case.
Apr
11
revised Is $\{(x,y) \in \mathbb R^2 : xy=0 \}$ homeomorphic to $\mathbb R$?
added 700 characters in body
Apr
10
revised Cardinality of an open dense set in a compact Hausdorff space
added 130 characters in body
Apr
10
revised Help needed in determining if statement is true
Replaced image with text.
Apr
10
revised Formula for combinatorial series sum
edited tags