Via_map_and_duplicate.Syntax
val let@ : ('a, 'index) t -> (('a, 'index) t -> 'b) -> ('b, 'index) t
Syntactic shortcuts for version of CORE.extend:
CORE
let@ x = e in f is equals to extend f e.
let@ x = e in f
extend f e
include Preface_specs.Indexed_functor.SYNTAX with type ('a, 'index) t := ('a, 'index) t
val let+ : ('a, 'index) t -> ('a -> 'b) -> ('b, 'index) t
let operator for mapping.
let