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Discrete Mathematics
Skip to main content \(\renewcommand{\d}{\displaystyle} \newcommand{\N}{\mathbb N} \newcommand{\B}{\mathbf B} \newcommand{\Z}{\mathbb Z} \newcommand{\Q}{\mathbb Q} \newcommand{\R}{\mathbb R} \newcomma...
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Discrete Mathematics - An Open Introduction
Discrete Mathematics Fall 2023 Update! The book is now also available on Runestone Academy. Instructors using this free service can assign and auto-grade the embedded interactive exercises. It even co...
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Discrete Mathematics: An Open Introduction
NOTE: A new edition is now available! This page describes and links to the 2nd edition. For the new edition, see the 3rd edition site. Discrete Mathematics: An Open Introduction is a free, open source...
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What is Discrete Mathematics?
What is Discrete Mathematics? dis·crete / dis'krët. Synonyms: separate - detached - distinct - abstract. Defining discrete mathematics is hard because defining mathematics is hard. What is mathemati...
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Functions
Functions A image of the input. The set of all inputs for a function is called the domain. The set of all allowable outputs is called the codomain. We would write \(f:X \to Y\) to describe a funct...