Elliott
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 Sep19 asked Why isn't there a first-order theory of well order? Sep5 answered Showing that a certain recursive set cannot exist? Sep5 asked Showing that a certain recursive set cannot exist? Aug18 asked Does the Cartesian product of an infinite family have all the elements we expect? Aug15 asked Equivalence between “mathematical induction” and “transfinite induction” for natural numbers? Aug13 asked Intersection of a non-empty set of natural numbers (set-theoretic definition) is a natural number? Aug13 asked Intersection of a non-empty set of natural numbers (set-theoretic definition) gives an element of that set? May17 asked Is there a connection between uncountable sets and exponential growth? Oct11 asked When does $a + b$ divide $a^p + b^p$? Oct11 asked Why does $a^n - b^n$ never divide $a^n + b^n$? Aug27 asked What's the probability that a sequence of coin flips never has twice as many heads as tails? Jul9 asked Motivating linear algebra for economics students? Jun24 asked Are “$n$ by $n$ matrices with rank $k$” an affine algebraic variety? Jun10 answered Fun Linear Algebra Problems Jun10 answered Help with understanding and studying probability Jun7 answered Cyclic groups whose every non-identity member is a generator Jun3 answered What is the expected value of the number of die rolls necessary to get a specific number? Jun1 answered Efficiently finding an integer satisfying a certain congruence May30 asked Obtaining irrational probabilities from fair coins? May24 asked Qualms about the axioms of probability