> Hans Åberg <mailto:haberg-1@telia.com>
> 29. September 2016 um 15:04
> The example below compiles with latest ConTeXt, suggesting that the 
> Unicode quadruple symbol ⨌ has not been registered as a math symbol, 
> as the command it is set to is ignored.
You have to extend the entry for ⨌ (0x 2A0C) in char-def.lua to create 
the \iiiint command.

Wolfgang