# StandardPredicateExpression A component expression that makes up part of a predicate, and that’s supported by the standard predicate type. ``` protocol StandardPredicateExpression

: PredicateExpression, Decodable, Encodable, Sendable ``` ## Overview Don’t declare new types that conform to the `StandardPredicateExpression` protocol. Only the types provided by Foundation are valid conforming types. ## Relationships ### Conforming Types [`ClosedRange`](/documentation/Foundation/PredicateExpressions/ClosedRange) [`DictionaryKeyDefaultValueSubscript`](/documentation/Foundation/PredicateExpressions/DictionaryKeyDefaultValueSubscript) [`Variable`](/documentation/Foundation/PredicateExpressions/Variable) [`Conjunction`](/documentation/Foundation/PredicateExpressions/Conjunction) [`NotEqual`](/documentation/Foundation/PredicateExpressions/NotEqual) [`Equal`](/documentation/Foundation/PredicateExpressions/Equal) [`Disjunction`](/documentation/Foundation/PredicateExpressions/Disjunction) [`CollectionRangeSubscript`](/documentation/Foundation/PredicateExpressions/CollectionRangeSubscript) [`NilLiteral`](/documentation/Foundation/PredicateExpressions/NilLiteral) [`IntDivision`](/documentation/Foundation/PredicateExpressions/IntDivision) [`SequenceMaximum`](/documentation/Foundation/PredicateExpressions/SequenceMaximum) [`Filter`](/documentation/Foundation/PredicateExpressions/Filter) [`IntRemainder`](/documentation/Foundation/PredicateExpressions/IntRemainder) [`StringContainsRegex`](/documentation/Foundation/PredicateExpressions/StringContainsRegex) [`FloatDivision`](/documentation/Foundation/PredicateExpressions/FloatDivision) [`SequenceMinimum`](/documentation/Foundation/PredicateExpressions/SequenceMinimum) [`DictionaryKeySubscript`](/documentation/Foundation/PredicateExpressions/DictionaryKeySubscript) [`UnaryMinus`](/documentation/Foundation/PredicateExpressions/UnaryMinus) [`SequenceAllSatisfy`](/documentation/Foundation/PredicateExpressions/SequenceAllSatisfy) [`StringLocalizedStandardContains`](/documentation/Foundation/PredicateExpressions/StringLocalizedStandardContains) [`StringCaseInsensitiveCompare`](/documentation/Foundation/PredicateExpressions/StringCaseInsensitiveCompare) [`CollectionIndexSubscript`](/documentation/Foundation/PredicateExpressions/CollectionIndexSubscript) [`TypeCheck`](/documentation/Foundation/PredicateExpressions/TypeCheck) [`ExpressionEvaluate`](/documentation/Foundation/PredicateExpressions/ExpressionEvaluate) [`StringLocalizedCompare`](/documentation/Foundation/PredicateExpressions/StringLocalizedCompare) [`CollectionContainsCollection`](/documentation/Foundation/PredicateExpressions/CollectionContainsCollection) [`ForcedUnwrap`](/documentation/Foundation/PredicateExpressions/ForcedUnwrap) [`Range`](/documentation/Foundation/PredicateExpressions/Range) [`ConditionalCast`](/documentation/Foundation/PredicateExpressions/ConditionalCast) [`Value`](/documentation/Foundation/PredicateExpressions/Value) [`KeyPath`](/documentation/Foundation/PredicateExpressions/KeyPath) [`OptionalFlatMap`](/documentation/Foundation/PredicateExpressions/OptionalFlatMap) [`RangeExpressionContains`](/documentation/Foundation/PredicateExpressions/RangeExpressionContains) [`ForceCast`](/documentation/Foundation/PredicateExpressions/ForceCast) [`Comparison`](/documentation/Foundation/PredicateExpressions/Comparison) [`SequenceContainsWhere`](/documentation/Foundation/PredicateExpressions/SequenceContainsWhere) [`Conditional`](/documentation/Foundation/PredicateExpressions/Conditional) [`Negation`](/documentation/Foundation/PredicateExpressions/Negation) [`SequenceContains`](/documentation/Foundation/PredicateExpressions/SequenceContains) [`Arithmetic`](/documentation/Foundation/PredicateExpressions/Arithmetic) [`NilCoalesce`](/documentation/Foundation/PredicateExpressions/NilCoalesce) [`PredicateEvaluate`](/documentation/Foundation/PredicateExpressions/PredicateEvaluate) [`SequenceStartsWith`](/documentation/Foundation/PredicateExpressions/SequenceStartsWith) ### Inherits From [`Sendable`](/documentation/Swift/Sendable) [`Decodable`](/documentation/Swift/Decodable) [`Encodable`](/documentation/Swift/Encodable) [`PredicateExpression`](/documentation/Foundation/PredicateExpression) [`SendableMetatype`](/documentation/Swift/SendableMetatype) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)