Challenging intuition: supremum of the set of all intersections with the x-axis
14896
Prove: the set of zeros of a continuous function is closed.
62260
Rational Coordinates with two intersecting lines
35644
Find the supremum of the following set
130157
How to calculate the intersection of two sets?
111057
On the position of multiple sub and superindices
84609
Unary intersection of the empty set
76140
The supremum norm is submultiplicative
113377
Empty preimage of an intersection implies empty intersection of the preimages
92249
Every finite set contains its supremum: proof improvement.
76661
Checking the maximality of a principal ideal in $R[x]$
71358
A very interesting question: intersection point of $x^y=y^x$
132595
$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{\operatorname{Tr}[\rho M]}{\operatorname{Tr}[\sigma M]}$ satisfies Data Processing Inequality
23225
Union of connected subsets is connected if intersection is nonempty
23414
Topologist's Sine Curve: A rigorous proof of why $\overline{S} = S \cup V$
81203
Supremum and infimum of sets
152518
Proof that the set of all possible curves is of cardinality $\aleph_2$?
107000
Dimension of intersection of distinct subspaces