 Returning to the subject of extensionality, one area in which extensional but not fully determined connectives arises is when one takes hybrids of the latter. By the hybrid of disjunction and conjunction, for example, understanding ∨ and ∧ to have the inferential powers conferred on them by a particular logic, is meant a binary connective whose inferential powers are those shared ∧ and ∨. (See Rautenberg 1989 for this example, and Rautenberg 1991 and references therein for more in this vein.) Note that the connectives hybridized and the resulting hybrid are connectives in the ‘logically loaded’ sense of Section  1  above.