The popular song “Auld Lang Syne” has nothing to do with math, but there are jokes.
 
“auld lang syne implies auld land cosyne and auld lang tangent” was posted on X/Twitter by JRR Jokien on December 31, 2020. “auld lang syne implies the existence of auld lang cosyne and auld lang tangynt” was posted on X/Twitter by JRR Jokien on December 31, 2021.
 
   
Wikipedia: Auld Lang Syne
“Auld Lang Syne” (Scots pronunciation: [ˈɔːl(d) lɑŋ ˈsəi̯n]; note [s] rather than [z]) is a popular song, particularly in the English-speaking world. Traditionally, it is sung to bid farewell to the old year at the stroke of midnight on New Year’s Eve/Hogmanay. By extension, it is also often heard at funerals, graduations, and as a farewell or ending to other occasions; for instance, many branches of the Scouting movement use it to close jamborees and other functions.
 
The text is a Scots-language poem written by Robert Burns in 1788 but based on an older Scottish folk song. In 1799, it was set to a traditional tune, which has since become standard. “Auld Lang Syne” is listed as numbers 6294 and 13892 in the Roud Folk Song Index.
 
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JRR Jokien
@joshcarlosjosh
auld lang syne implies auld land cosyne and auld lang tangent
2:03 PM · Dec 31, 2020
 
X/Twitter
Sinclair
@ItsEdSinclair
Auld Lang Syne implies the adjacent existence of Auld Lang Cosyne and Auld Lang Tan.
5:52 AM · Jun 18, 2021
 
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ScottPurdue22
@2ValveKing
The existence of Auld Lang Syne implies the existence of Auld Lang Cosyne and Auld Lang Tangent.
5:24 PM · Dec 23, 2021
 
X/Twitter
JRR Jokien
@joshcarlosjosh
auld lang syne implies the existence of auld lang cosyne and auld lang tangynt
8:27 PM · Dec 31, 2021
 
X/Twitter
JRR Jokien
@joshcarlosjosh
auld lang syne implies the existence of auld lang cosyne and auld lang tangynt
6:12 PM · Jan 2, 2024