Syntax - - - Negative Number Literal
Characters: -
The beginners' page has a more thorough explanation of Jelly syntax and tokenization.
Functionality
Negate a number literal. Without a value, - defaults to -1.
Details
The binding order for number literals is ., -, ȷ, and finally ı, so the maximum number of components a number literal can have is -a.bȷ-c.dı-e.fȷ-g.h.