quasireflexive (suomeksi)

Määritelmät:

(lb, en, set theory) Of a relation ~ on a set S: such that every element that is related to some element is also related to itself, i.e. ∀x,y∈S: x~y ⇒ x~x ∧ y~y.
(lb, en, topology) Of a Banach space ''X'': such that the quotient (nowrap, ''X'' ′′ / ''J''(''X'')) has finite dimension ''d''. (It is then said to be "quasireflexive of order ''d''".)