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§1 Teams and Roles > §1.3 Acquisition and implicit inheritance of role classes > §1.3.2 Regular role inheritance

#### §1.3.2.(d) Adding implemented interfaces

`implements` declarations are additive, i.e., an implicit sub-role may add more interfaces but has to implement all interfaces of its implicit super-role, too.

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§1 Teams and Roles > §1.3 Acquisition and implicit inheritance of role classes > §1.3.2 Regular role inheritance

OT/J version 1.3.1 — last modified: 2013-05-28