/ https://www.facebook.com/GmathLtd https://www.facebook.com/friendship/100000258995737/1171433897 Stitching trefoil knots on a tetrahedron with @geogebra: https://t.co/ZYjx5YSKB4 pic.twitter.com/HjZdxvIimw— Guillermo Bautista (@jr_bautista) January 5, 2023 https://t.co/3kfX1Da6ut via @graphmatics— Graphmatics LTD (@Graphmatics) December 30, 2022 Tweets by JohnDCook
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