. "Equivalence relations (Set theory)"@en . _:bnode7authoritiessubjectssh85044563 . _:bnode7authoritiessubjectssh85044563 . _:bnode7authoritiessubjectssh85044563 "Relations, Equivalence (Set theory)"@en . . . . . "Relations, Equivalence (Set theory)"@en . _:bnode18authoritiessubjectssh85044563 . _:bnode18authoritiessubjectssh85044563 . _:bnode18authoritiessubjectssh85044563 . _:bnode18authoritiessubjectssh85044563 "Library of Congress, Network Development and MARC Standards Office" . _:bnode18authoritiessubjectssh85044563 "1986-02-11T00:00:00"^^ . _:bnode18authoritiessubjectssh85044563 "new"^^ .