Module
Data.Eq
#Eq
class Eq a where
The Eq
type class represents types which support decidable equality.
Eq
instances should satisfy the following laws:
- Reflexivity:
x == x = true
- Symmetry:
x == y = y == x
- Transitivity: if
x == y
andy == z
thenx == z
Note: The Number
type is not an entirely law abiding member of this
class due to the presence of NaN
, since NaN /= NaN
. Additionally,
computing with Number
can result in a loss of precision, so sometimes
values that should be equivalent are not.
Members
Instances
#(==)
Operator alias for Data.Eq.eq (non-associative / precedence 4)
#notEq
#(/=)
Operator alias for Data.Eq.notEq (non-associative / precedence 4)
#Eq1
Modules
- Control.Applicative
- Control.Apply
- Control.Bind
- Control.Category
- Control.Monad
- Control.Semigroupoid
- Data.Boolean
- Data.BooleanAlgebra
- Data.Bounded
- Data.CommutativeRing
- Data.DivisionRing
- Data.Eq
- Data.EuclideanRing
- Data.Field
- Data.Function
- Data.Functor
- Data.HeytingAlgebra
- Data.Monoid
- Data.Monoid.Additive
- Data.Monoid.Conj
- Data.Monoid.Disj
- Data.Monoid.Dual
- Data.Monoid.Endo
- Data.Monoid.Multiplicative
- Data.NaturalTransformation
- Data.Ord
- Data.Ord.Unsafe
- Data.Ordering
- Data.Ring
- Data.Semigroup
- Data.Semigroup.First
- Data.Semigroup.Last
- Data.Semiring
- Data.Show
- Data.Symbol
- Data.Unit
- Data.Void
- Effect
- Effect.Class
- Effect.Class.Console
- Effect.Console
- Effect.Uncurried
- Effect.Unsafe
- Main
- PSCI.Support
- Prelude
- Prim
- Prim.Ordering
- Prim.Row
- Prim.RowList
- Prim.Symbol
- Prim.TypeError
- Record.Unsafe
- Type.Data.Boolean
- Type.Data.Ordering
- Type.Data.Row
- Type.Data.RowList
- Type.Data.Symbol
- Type.Equality
- Type.Prelude
- Type.Proxy
- Type.Row
- Type.Row.Homogeneous