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New posts in pigeonhole-principle
The pigeonhole principle(?)
combinatorics
pigeonhole-principle
How many people would you need in a room to ensure with 100% probaility that three have the same birthday?
probability
pigeonhole-principle
Show that given a set of positive n integers, there exists a non-empty subset whose sum is divisible by n
pigeonhole-principle
Does there exist a bijection that is not eventually equal to the identity, but has a finite number of "crosses"?
real-analysis
sequences-and-series
analysis
pigeonhole-principle
The Probabilistic Pigeon Hole Principle
probability
limits
pigeonhole-principle
Arc sums for a circle of $k$ positive integers whose total sum is $n$
combinatorics
recreational-mathematics
problem-solving
pigeonhole-principle
Prove that the 23 people have the same weight.
linear-algebra
combinatorics
pigeonhole-principle
Killing Flies with a Checkerboard Flyswatter
combinatorics
contest-math
pigeonhole-principle
101 positive integers placed on a circle
combinatorics
pigeonhole-principle
To find the minimum number of $3$-toppings pizza so that it meets the demand of my friend!
combinatorics
discrete-mathematics
recreational-mathematics
pigeonhole-principle
combinatorial-designs
Prove that there are two subsets of any cardinality-10 subsets of $\{1,2\dots,106\}$ that sum to the same number
combinatorics
pigeonhole-principle
Prove that at a party with at least two people, there are two people who know the same number of people...
logic
discrete-mathematics
induction
pigeonhole-principle
"Math Lotto" Tickets - finding the minimum winning set
combinatorics
pigeonhole-principle
coloring
combinatorial-designs
lotteries
How are the pigeonholes calculated in this pigeon-hole problem?
combinatorics
pigeonhole-principle
Existance of multiple of $n$ with only 0 and 1 as it's digits [duplicate]
abstract-algebra
pigeonhole-principle
Prove that any set of 2015 numbers has a subset who's sum is divisible by 2015
combinatorics
elementary-number-theory
pigeonhole-principle
pigeonhole principle divisibility proof
elementary-number-theory
discrete-mathematics
pigeonhole-principle
Difficult variation of the committee problem
combinatorics
elementary-set-theory
pigeonhole-principle
Finding equal partial sum given two $N$-tuples of natural numbers
combinatorics
contest-math
pigeonhole-principle
Is Pigeonhole Principle the negation of Dedekind-infinite?
elementary-number-theory
set-theory
pigeonhole-principle
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