Module type Indexed_monad_plus.WITH_NEUTRAL_AND_COMBINE

Minimal interfaces of Indexed Alternative without Indexed_monad.

type ('a, 'index) t

The type held by the Indexed Monad Plus.

val combine : ('a, 'index) t -> ('a, 'index) t -> ('a, 'index) t

Combine two values of t into one.

val neutral : ('a, 'index) t

The neutral element of the t.