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Proof of the Irrationality of the Square Root of 2 ( 2 )

For the proof of the irrationality of the square root of 2 different proofs exist. This article explains in detail the indirect proof variant and introduces one of the pos­sible short spellings in mathematical notation. Ex­er­cises with solutions consolidate what has been learn­ed.

The duplex file versions have a type-area optimized for duplex-capable printers (double-sided printing), the mar­gin widths vary depending on even or odd page num­bers.

“Proof of the Irrationality of The Square Root of 2 ( 2 )”
File Pages Date Size


13 June 14, 2019 0.42 MB


12 June 14, 2019 0.42 MB


13 June 14, 2019 0.42 MB


13 June 14, 2019 0.42 MB

German Version: “Beweis der Irrationalität der Quadratwurzel aus 2 ( 2 )”
File Pages Date Size


12 June 14, 2019 0.42 MB


12 June 14, 2019 0.42 MB


13 June 14, 2019 0.42 MB


13 June 14, 2019 0.42 MB

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August 21, 2022
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