In formal semantics conservativity is a proposed linguistic universal which states that any determiner D {\displaystyle D} must obey the equivalence D ( A , B ) ↔ D ( A , A ∩ B ) {\displaystyle D(A,B)\leftrightarrow D(A,A\cap B)} . For instance, the English determiner "every" can be seen to be conservative by the equivalence of the following two sentences, schematized in generalized quantifier notation to the right.
In formal semantics conservativity is a proposed linguistic universal which states that any determiner D {\displaystyle D} must obey the equivalence D ( A , B ) ↔ D ( A , A ∩ B ) {\displaystyle D(A,B)\leftrightarrow D(A,A\cap B)} . For instance, the English determiner "every" can be seen to be conservative by the equivalence of the following two sentences, schematized in generalized quantifier notation to the right.
Source: Wikipedia "Conservativity" · CC BY-SA 4.0
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