Non-egalitarian treatment of mathematical operators
Hans Åberg
haberg-1 at telia.com
Fri Apr 22 07:31:16 CDT 2022
> On 20 Apr 2022, at 19:48, Kent Karlsson <kent.b.karlsson at bahnhof.se> wrote:
>
>> In math, it is common that the symbols vary. For example, in logic, one might use for conjunction 𝑨 ∧ 𝑩 or 𝑨 & 𝑩, or implication
>> 𝑨 ⇒ 𝑩, 𝑨 → 𝑩, or 𝑨 ⊃ 𝑩. If defines the logic using a specific set of symbols, it is also valid for other such sets.
>
> That is fine. But…
>
> The symbol ⊃ is ”bidi mirrored”:
>
> 2283;SUPERSET OF;Sm;0;ON;;;;;Y;;;;;
>
> and has an entry in BidiMirroring.txt:
>
> 2283; 2282 # SUPERSET OF
>
> But neither ⇒ nor → are bidi mirrored, just because they are ”arrows”.
Perhaps they only use RTL on elementary math.
More information about the Unicode
mailing list