Subtract public struct Subtract: Fn Subtract computes the difference of a list of numbers. Attempting to subtract fewer than two numbers will result in an “invalid argument” error. Reference. init(_:) Declaration Swift public init(_ terms: Expr...) Parameters terms Numbers to be subtracted. © 2018 Fauna, Inc. All rights reserved. (Last updated: 2018-03-21) Generated by jazzy ♪♫ v0.8.2, a Realm project.