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open Base
module type S = sig
type t
val ( ~: ) : t -> t
end
module Make (B : S) = struct
open B
let bfalse z = [ [ ~:z ] ]
let btrue z = [ [ z ] ]
let bnot z x = [ [ x; z ]; [ ~:x; ~:z ] ]
let bwire z x = [ [ ~:z; x ]; [ z; ~:x ] ]
let bnor z x =
let sum = List.fold_right x ~init:[ z ] ~f:(fun x a -> x :: a) in
List.fold_right x ~init:[ sum ] ~f:(fun x a -> [ ~:x; ~:z ] :: a)
;;
let bor z x =
let sum = List.fold_right x ~init:[ ~:z ] ~f:(fun x a -> x :: a) in
List.fold_right x ~init:[ sum ] ~f:(fun x a -> [ ~:x; z ] :: a)
;;
let bnand z x =
let sum = List.fold_right x ~init:[ ~:z ] ~f:(fun x a -> ~:x :: a) in
List.fold_right x ~init:[ sum ] ~f:(fun x a -> [ x; z ] :: a)
;;
let band z x =
let sum = List.fold_right x ~init:[ z ] ~f:(fun x a -> ~:x :: a) in
List.fold_right x ~init:[ sum ] ~f:(fun x a -> [ x; ~:z ] :: a)
;;
let bxor z a b = [ [ ~:z; ~:a; ~:b ]; [ ~:z; a; b ]; [ z; ~:a; b ]; [ z; a; ~:b ] ]
end