Question

The metric that is equal to 1 if x is not equal to y, and equal to 0 if x is equal to y induces this topology. For 10 points each:
[10h] Identify this finest possible topology in which all subsets are open.
ANSWER: discrete topology
[10e] Any function from the discrete topology to another topological space always has this property because the pullback is always open. Functions with this property can be sketched without lifting the pencil from the paper.
ANSWER: continuity [or continuous functions]
[10m] The discrete topology has this property if it is finite. Topological spaces have this property if every open cover contains a finite subcover.
ANSWER: compactness
<Leo Law, Other Science>

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Summary

2023 Penn Bowl @ Waterloo10/28/2023Y427.50100%100%75%
2023 Penn Bowl @ FSU10/28/2023Y215.00100%50%0%
2023 Penn Bowl (Harvard)10/21/2023Y320.00100%67%33%
2023 Penn Bowl (Mainsite)10/21/2023Y621.67100%67%50%
2023 Penn Bowl (Norcal)10/28/2023Y220.00100%100%0%
2023 Penn Bowl (South Central)10/28/2023Y320.00100%67%33%
2023 Penn Bowl (UK)10/28/2023Y524.00100%100%40%
2023 Penn Bowl @ UNC10/28/2023Y422.50100%75%50%

Data

Library of Babel School of Continuing StudiesToronto Rofl10101030
Waterloo HatsuneMixed-Affiliated Contingency, Off the Team & Absent: Wong, Adrian0101020
Toronto JoyWaterloo Miku10101030
Florida AFlorida B0101020
North FloridaFSU A010010
La Clique du ChâteauToronto Weary10101030
MITBrandeis10101030
BrownBoston College010010
HarvardTufts0101020
Columbia BUMD B10101030
RITCornell A10101030
RutgersCornell B0101020
Columbia AJHU A10101030
NYUSwarthmore010010
Berkeley ABerkeley C0101020
StanfordBerkeley B0101020
PittUMD A010010
Texas AOklahoma B10101030
Oklahoma ATexas B010010
RiceTexas C0101020
Old London Town10 Negs that Shook the Quiz0101020
Tabearnacle3HK1MM10101030
Betrayed by Rita IzzatdustScottish, Irish, Both or Neither10101030
Broken HeartsFour Neg Omelette0101020
Yes, ModeratorFoucault's Penndulum0101020
USC AUSC B010010
Duke AUNC B0101020
UNC AUNC C10101030
UNC AUNC C10101030
UNC AUNC C10101030
UNC AUNC C10101030
UNC AUNC C10101030
UNC AUNC C10101030
UNC AUNC C10101030
UNC AUNC C10101030