trait
Semigroup
[S]
extends AnyRef
Abstract Value Members
-
def
append
(s1: S, s2: ⇒ S): S
Concrete Value Members
-
def
!=
(arg0: AnyRef): Boolean
-
def
!=
(arg0: Any): Boolean
-
def
##
(): Int
-
def
==
(arg0: AnyRef): Boolean
-
def
==
(arg0: Any): Boolean
-
def
asInstanceOf
[T0]
: T0
-
def
clone
(): AnyRef
-
def
eq
(arg0: AnyRef): Boolean
-
def
equals
(arg0: Any): Boolean
-
def
finalize
(): Unit
-
def
getClass
(): java.lang.Class[_]
-
def
hashCode
(): Int
-
def
isInstanceOf
[T0]
: Boolean
-
def
ne
(arg0: AnyRef): Boolean
-
def
notify
(): Unit
-
def
notifyAll
(): Unit
-
def
synchronized
[T0]
(arg0: ⇒ T0): T0
-
def
toString
(): String
-
def
wait
(): Unit
-
def
wait
(arg0: Long, arg1: Int): Unit
-
def
wait
(arg0: Long): Unit
Inherited from AnyRef
Inherited from Any
A Semigroup in type S must satisfy two laws:
- Closure: ∀ a, b in S, append(a, b) is also in S. This is enforced by the type sys.
- Associativity: ∀ a, b and c in S, the equation append(append(a, b), c) = append(a, append(b , c)) holds.
scalaz.Identity#⊹