Practice Pigeonhole Principle Argument (18.3.2) - Subsequence Existence
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Pigeonhole Principle Argument

Practice - Pigeonhole Principle Argument

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Practice Questions

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Question 1 Easy

Define a strictly increasing sequence.

💡 Hint: Think about how numbers can be arranged.

Question 2 Easy

What does the Pigeonhole Principle state?

💡 Hint: Consider how this applies to simple grouping.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a strictly increasing sequence?

A sequence where all elements are the same
A sequence where each element is larger than the previous
A sequence in descending order

💡 Hint: Think about how numbers grow.

Question 2

True or False: The Pigeonhole Principle can always be applied to find a repeated value in sets.

True
False

💡 Hint: Reflect on grouping elements.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given the set of integers {1, 2, ..., 10}, prove that in any selection of 6 values, either there will be a strictly increasing or a strictly decreasing subsequence of length 4.

💡 Hint: Think about maximum sequences you can get.

Challenge 2 Hard

For the sequence (3, 5, 2, 4, 1), identify the increasing and decreasing subsequences of maximum length.

💡 Hint: Look for sequences that can skip numbers.

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