• For each pair of relations $S,T\colon X\mathrel {\rightrightarrows \kern -9.5pt\mathrlap {|}\kern 6pt}A$, the following condition is satisfied:
    • If $S\mathbin {\diamond }R\subset T\mathbin {\diamond }R$, then $S\subset T$.

Noticed something off, or have any comments? Feel free to reach out!


You can also use the contact form below: