Negative/Negation Sign

[Marius Spix]

The minus sign IS in Unicode (U+2212 MINUS SIGN). The braces on the
calculator key are for differentiation of the unary minus (negation)
and the binary minus (subtraction). There is also a logical negation
sign for propositional calculus (U+00AC NOT SIGN).

Am Fri, 28 Oct 2022 11:53:54 -0400
schrieb Gabriel Tellez via Unicode <unicode at corp.unicode.org>:

> The negative sign (also known as the negation sign) found on graphing
> calculator sets (such as the Ti-83/84 sets) appears to be absent from
> Unicode. Is there a reason for this?