Definition:Borromean Rings
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Definition
The Borromean rings is an arrangement of $3$ interlinked rings such that no $2$ of the rings are themselves linked.
That is, if one of them is removed, then the other $2$ are unlinked.
Historical Note
The Borromean rings were named after the House of Borromeo, a wealthy merchant family who were important politically in the Duchy of Milan in the late middle ages.
They incorporated a design based on these rings on their coat of arms in the $15$th century.
Sources
- 1991: David Wells: Curious and Interesting Geometry ... (previous) ... (next): Borromean rings
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Borromean rings
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Borromean rings