Lecture

Proofs: Contraposition vs. Contradiction

In course

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Description

This lecture covers the concepts of contraposition and contradiction in proofs, illustrating how to prove the irrationality of 2 using a contradiction method. It also discusses mistakes in proofs and constructive existence proofs, showing how to represent integers as sums of cubes and the existence of irrational numbers.

Official source

https://mediaspace.epfl.ch/media/0_aqbqmbrs

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Ontological neighbourhood

Mathematics

Algebra: Equations

Logic

Classical logic: First-order logic

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