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A comment on Why Do Mirrors Flip Things Horizontally but Not Vertically? Here's the Physics. Parent comment

Re:Why Do Mirrors Flip Things Horizontally but Not Verticall... by EForEndeavour on Wednesday October 07, 2020 @10:20AM (#24708486)
> "Flip" is a human word, it's not a mathematical definition.

Why not both? https://en.wikipedia.org/wiki/Flip_(mathematics)

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