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MathNet 2011 Question 75

Math Olympiad Vault · MathNet 2011

Question 75

Order any subset of the following twentieth century mathematical achievements chronologically, from earliest to most recent. If you correctly place at least six of the events in order, your score will be $2(n-5)$, where $n$ is the number of events in your sequence; otherwise, your score will be zero. Note: if you order any number of events with one error, your score will be zero.

A). Axioms for Set Theory published by Zermelo
B). Category Theory introduced by Mac Lane and Eilenberg
C). Collatz Conjecture proposed
D). Erdos number defined by Goffman
E). First United States delegation sent to International Mathematical Olympiad
F). Four Color Theorem proven with computer assistance by Appel and Haken
G). Harvard-MIT Math Tournament founded
H). Hierarchy of grammars described by Chomsky
I). Hilbert Problems stated
J). Incompleteness Theorems published by Godel
K). Million dollar prize for Millennium Problems offered by Clay Mathematics Institute
L). Minimum number of shuffles needed to randomize a deck of cards established by Diaconis
M). Nash Equilibrium introduced in doctoral dissertation
N). Proof of Fermat's Last Theorem completed by Wiles
O). Quicksort algorithm invented by Hoare

Write your answer as a list of letters, without any commas or parentheses.