Also known as involutory function, involutive function, self-inverse function
function that is its own inverse
Connections
parity
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complex conjugate
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complement
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bitwise operation
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Banach algebra
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mathematics
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geometry
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arithmetic
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International Standard Book Number
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set theory
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function
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digital object identifier
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matrix
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26
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Donald Knuth
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group
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Internet Archive
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group theory
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76
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encryption
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