BaseSemigroup<T> constructor

1. func_dart_core
2. semigroup
3. BaseSemigroup<T>
4. BaseSemigroup constructor

BaseSemigroup class

1. Constructors
2. BaseSemigroup
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. concat
8. noSuchMethod
9. toString
10. Operators
11. operator ==