Quantifiers

Quantifiers are symbols used in logic to specify the scope of a statement, indicating whether it applies to all or some elements in a particular set. In predicate logic, there are two main types: the universal quantifier (typically represented as "∀"), which denotes that a statement is true for all elements (e.g., "All humans are mortal"), and the existential quantifier (represented as "∃"), which indicates that there is at least one element for which the statement is true (e.g., "Some birds can fly"). These quantifiers help clarify the breadth of claims made in logical expressions.