Countable Sets

A notion of cardinality that covers finite sets and those that can be enumerated via the natural numbers.

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Concept Content
Natural Numbers and Induction Using natural numbers is our first mathematical abstraction as children. Mathematical induction is an important technique of proof.
Injectivity, Surjectivity, Bijectivity These are important notions for maps.
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Concept Content
Uncountability of the Reals The real numbers cannot be enumerated.

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Fabian Gabel and Marcus Waurick. Well-defined & Wonderful podcast, marcus-waurick.de.

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The data for the interactive network on this webpage was generated with pntfx Copyright Fabian Gabel and Julian Großmann. pntfx is licensed under the MIT license. Visualization of the network uses the open-source graph theory library Cytoscape.js licensed under the MIT license.

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