  We show that the construction of mirror-reflective algebras inherits derived
equivalences of gendo-symmetric algebras. More precisely, suppose A and B are
gendo-symmetric algebras with both Ae and Bf faithful projective-injective left
ideals generated by idempotents e in A and f in B, respectively. If A and B are
derived equivalent, then the mirror-reflective algebras of (A,e) and (B,f) are
derived equivalent.
