<p>The <a href="https://en.wikipedia.org/wiki/Borromean_rings" class="extiw" title="w:Borromean rings">Borromean rings</a> configuration of knot theory, depicted using same-size circles, without an area enclosed by all three circles.  For a depiction with central overlap, see <a href="//commons.wikimedia.org/wiki/File:BorromeanRings.svg" title="File:BorromeanRings.svg">File:BorromeanRings.svg</a>, etc.
</p>
For configurations of three linked rings which are not Borromean, see <a href="//commons.wikimedia.org/wiki/File:Two-representations-of-L6n1-link-as-linked-circles.svg" title="File:Two-representations-of-L6n1-link-as-linked-circles.svg">File:Two-representations-of-L6n1-link-as-linked-circles.svg</a>
AnonMoos
<p><span class="int-own-work" lang="en">Own work</span> (<span lang="en" dir="ltr">Original text: <i><bdi lang="">Self-made graphic, converted from a version of the following vector PostScript source code:</bdi></i></span>)<br></p>
<pre>%!
300 282 translate/plr{dup 3 2 roll 72 mul 90 add dup 3 1
roll cos mul 3 1 roll sin mul}def 23.1130905 setlinewidth
/A{0.5 4 4.5{100 plr 78 0 360 arc closepath stroke}for 0
182 plr 78 0 360 arc closepath stroke}def A 11.5565453
setlinewidth 1 setgray A showpage
%EOF</pre>