Failed punctuation

[Stephen Roe]

On Wednesday, June 04, 1997 08:17, LARSSON at VAX1.Mankato.MSUS.EDU [SMTP:LARSSON at VAX1.Mankato.MSUS.EDU] wrote:
> 
> Paul De Filippo notes:
> "I always hoped the "interrobang" would catch on, a fusion
> of exclamation point and question mark.  Also, consider the
> Tibetan "terma", three dots arranged in a mini-pyramid,
> signalling that text preceding is holy.  Should TRP use this!?"
> 
> 
> That three-dot triangle is also a mathematical symbol whose use escapes
> my decaffeinated brain just now.
> 
> Don Larsson, Mankato State U (MN)

In mathematics three dots arrange as a pyramid stand for therefore.
Also the inverse, three dots in a triangle pointing down means
because.  If you want to see lots of arcane punctuation marks just pick
up any mathematics or engineering text.  In more advanced texts
the symbols become more obscure and plentiful.  A favorite of mine
is "such that" a kind of backwards letter e with the top loop open.
  
Steve Roe