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Lecture 4: Counting
Description
MIT 18.200 Principles of Discrete Applied Mathematics, Spring 2024
Instructor: Peter Shor
View the complete course: https://ocw.mit.edu/courses/18-200-principles-of-discrete-applied-mathematics-spring-2024
YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61p2fXeXjNCrfNHFwyW-bl0
Binomial coefficients, bijections, technique of counting in two different ways. We show that the Catalan numbers count several different things, namely Dyck paths, plane trees, and binary trees.
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