Non-egalitarian treatment of mathematical operators

[Hans Åberg]

> 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.