/**
 * Operations for working with TypeScript `boolean` values in expression-oriented
 * code. Use this module to narrow unknown input, branch without inline
 * conditionals, combine boolean flags with named logical operators, and reduce
 * boolean collections.
 *
 * **Mental model**
 *
 * Boolean values are plain JavaScript booleans. The module adds a small
 * vocabulary around them: {@link match} for choosing between two lazy branches,
 * logical combinators such as {@link and}, {@link or}, {@link xor}, and
 * {@link implies}, and collection helpers such as {@link every} and
 * {@link some}. The exported {@link Order} sorts `false` before `true`, and
 * {@link Equivalence} compares booleans with strict equality.
 *
 * **Common tasks**
 *
 * - Coerce or narrow input: {@link Boolean}, {@link isBoolean}
 * - Branch on a boolean: {@link match}
 * - Invert and combine flags: {@link not}, {@link and}, {@link or},
 *   {@link nand}, {@link nor}, {@link xor}, {@link eqv}, {@link implies}
 * - Check boolean collections: {@link every}, {@link some}
 * - Pass boolean instances to generic APIs: {@link Order}, {@link Equivalence},
 *   {@link ReducerAnd}, {@link ReducerOr}
 *
 * **Gotchas**
 *
 * - {@link Boolean} is the native JavaScript constructor. It follows truthiness
 *   rules, so values such as `"false"` and `[]` coerce to `true`.
 * - {@link every} returns `true` for an empty iterable, matching logical AND.
 *   {@link some} returns `false` for an empty iterable, matching logical OR.
 * - {@link ReducerAnd} and {@link ReducerOr} are for APIs that consume a
 *   `Reducer`; use {@link every} or {@link some} when you want direct iterable
 *   checks.
 *
 * **Quickstart**
 *
 * **Example** (Combining validation flags)
 *
 * ```ts
 * import { Boolean } from "effect"
 *
 * const hasName = true
 * const hasEmail = false
 *
 * const isComplete = Boolean.and(hasName, hasEmail)
 * console.log(isComplete) // false
 *
 * const message = Boolean.match(isComplete, {
 *   onFalse: () => "missing fields",
 *   onTrue: () => "ready"
 * })
 * console.log(message) // "missing fields"
 * ```
 *
 * @since 2.0.0
 */
import * as Equ from "./Equivalence.ts";
import type { LazyArg } from "./Function.ts";
import * as order from "./Order.ts";
import * as Reducer from "./Reducer.ts";
/**
 * Exposes the global boolean constructor for JavaScript truthiness
 * coercion.
 *
 * **When to use**
 *
 * Use to access native JavaScript truthiness coercion from the Effect module
 * namespace.
 *
 * **Gotchas**
 *
 * This follows native truthiness rules. For example, non-empty strings such as
 * `"false"` coerce to `true`.
 *
 * **Example** (Coercing values to booleans)
 *
 * ```ts
 * import { Boolean } from "effect"
 *
 * const bool = Boolean.Boolean(1)
 * console.log(bool) // true
 *
 * const fromString = Boolean.Boolean("false")
 * console.log(fromString) // true (non-empty string)
 *
 * const fromZero = Boolean.Boolean(0)
 * console.log(fromZero) // false
 * ```
 *
 * @category constructors
 * @since 4.0.0
 */
export declare const Boolean: BooleanConstructor;
/**
 * Checks whether a value is a `boolean`.
 *
 * **When to use**
 *
 * Use to validate unknown input and narrow it to `boolean`.
 *
 * **Example** (Checking for booleans)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.isBoolean(true), true)
 * assert.deepStrictEqual(Boolean.isBoolean("true"), false)
 * ```
 *
 * @category guards
 * @since 2.0.0
 */
export declare const isBoolean: (input: unknown) => input is boolean;
/**
 * Chooses between two lazy branches based on a boolean value.
 *
 * **When to use**
 *
 * Use to choose between two lazy branches based on a boolean value.
 *
 * **Example** (Pattern matching on booleans)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(
 *   Boolean.match(true, {
 *     onFalse: () => "It's false!",
 *     onTrue: () => "It's true!"
 *   }),
 *   "It's true!"
 * )
 * ```
 *
 * @category pattern matching
 * @since 2.0.0
 */
export declare const match: {
    /**
     * Chooses between two lazy branches based on a boolean value.
     *
     * **When to use**
     *
     * Use to choose between two lazy branches based on a boolean value.
     *
     * **Example** (Pattern matching on booleans)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(
     *   Boolean.match(true, {
     *     onFalse: () => "It's false!",
     *     onTrue: () => "It's true!"
     *   }),
     *   "It's true!"
     * )
     * ```
     *
     * @category pattern matching
     * @since 2.0.0
     */
    <A, B = A>(options: {
        readonly onFalse: LazyArg<A>;
        readonly onTrue: LazyArg<B>;
    }): (value: boolean) => A | B;
    /**
     * Chooses between two lazy branches based on a boolean value.
     *
     * **When to use**
     *
     * Use to choose between two lazy branches based on a boolean value.
     *
     * **Example** (Pattern matching on booleans)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(
     *   Boolean.match(true, {
     *     onFalse: () => "It's false!",
     *     onTrue: () => "It's true!"
     *   }),
     *   "It's true!"
     * )
     * ```
     *
     * @category pattern matching
     * @since 2.0.0
     */
    <A, B>(value: boolean, options: {
        readonly onFalse: LazyArg<A>;
        readonly onTrue: LazyArg<B>;
    }): A | B;
};
/**
 * Provides an `Order` instance for `boolean` that allows comparing and sorting boolean values.
 * In this ordering, `false` is considered less than `true`.
 *
 * **When to use**
 *
 * Use when sorting or comparing boolean values through APIs that accept an
 * ordering instance where `false` comes before `true`.
 *
 * **Example** (Comparing booleans)
 *
 * ```ts
 * import { Boolean } from "effect"
 *
 * console.log(Boolean.Order(false, true)) // -1 (false < true)
 * console.log(Boolean.Order(true, false)) // 1 (true > false)
 * console.log(Boolean.Order(true, true)) // 0 (true === true)
 * ```
 *
 * @category instances
 * @since 2.0.0
 */
export declare const Order: order.Order<boolean>;
/**
 * Equivalence instance for booleans using strict equality (`===`).
 *
 * **When to use**
 *
 * Use when checking boolean equality through APIs that accept an equivalence
 * relation.
 *
 * **Example** (Comparing booleans for equivalence)
 *
 * ```ts
 * import { Boolean } from "effect"
 *
 * console.log(Boolean.Equivalence(true, true)) // true
 * console.log(Boolean.Equivalence(true, false)) // false
 * ```
 *
 * @category instances
 * @since 2.0.0
 */
export declare const Equivalence: Equ.Equivalence<boolean>;
/**
 * Negates the given boolean: `!self`
 *
 * **When to use**
 *
 * Use to invert a boolean value.
 *
 * **Example** (Negating booleans)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.not(true), false)
 * assert.deepStrictEqual(Boolean.not(false), true)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const not: (self: boolean) => boolean;
/**
 * Combines two booleans using logical AND: `self && that`.
 *
 * **When to use**
 *
 * Use to require both boolean operands to be `true`.
 *
 * **Details**
 *
 * Supports both data-first and data-last forms.
 *
 * **Example** (Combining booleans with AND)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.and(true, true), true)
 * assert.deepStrictEqual(Boolean.and(true, false), false)
 * assert.deepStrictEqual(Boolean.and(false, true), false)
 * assert.deepStrictEqual(Boolean.and(false, false), false)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const and: {
    /**
     * Combines two booleans using logical AND: `self && that`.
     *
     * **When to use**
     *
     * Use to require both boolean operands to be `true`.
     *
     * **Details**
     *
     * Supports both data-first and data-last forms.
     *
     * **Example** (Combining booleans with AND)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.and(true, true), true)
     * assert.deepStrictEqual(Boolean.and(true, false), false)
     * assert.deepStrictEqual(Boolean.and(false, true), false)
     * assert.deepStrictEqual(Boolean.and(false, false), false)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two booleans using logical AND: `self && that`.
     *
     * **When to use**
     *
     * Use to require both boolean operands to be `true`.
     *
     * **Details**
     *
     * Supports both data-first and data-last forms.
     *
     * **Example** (Combining booleans with AND)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.and(true, true), true)
     * assert.deepStrictEqual(Boolean.and(true, false), false)
     * assert.deepStrictEqual(Boolean.and(false, true), false)
     * assert.deepStrictEqual(Boolean.and(false, false), false)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Combines two boolean using NAND: `!(self && that)`.
 *
 * **When to use**
 *
 * Use to negate a logical AND result.
 *
 * **Example** (Combining booleans with NAND)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.nand(true, true), false)
 * assert.deepStrictEqual(Boolean.nand(true, false), true)
 * assert.deepStrictEqual(Boolean.nand(false, true), true)
 * assert.deepStrictEqual(Boolean.nand(false, false), true)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const nand: {
    /**
     * Combines two boolean using NAND: `!(self && that)`.
     *
     * **When to use**
     *
     * Use to negate a logical AND result.
     *
     * **Example** (Combining booleans with NAND)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.nand(true, true), false)
     * assert.deepStrictEqual(Boolean.nand(true, false), true)
     * assert.deepStrictEqual(Boolean.nand(false, true), true)
     * assert.deepStrictEqual(Boolean.nand(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two boolean using NAND: `!(self && that)`.
     *
     * **When to use**
     *
     * Use to negate a logical AND result.
     *
     * **Example** (Combining booleans with NAND)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.nand(true, true), false)
     * assert.deepStrictEqual(Boolean.nand(true, false), true)
     * assert.deepStrictEqual(Boolean.nand(false, true), true)
     * assert.deepStrictEqual(Boolean.nand(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Combines two boolean using OR: `self || that`.
 *
 * **When to use**
 *
 * Use to accept when either boolean operand is `true`.
 *
 * **Example** (Combining booleans with OR)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.or(true, true), true)
 * assert.deepStrictEqual(Boolean.or(true, false), true)
 * assert.deepStrictEqual(Boolean.or(false, true), true)
 * assert.deepStrictEqual(Boolean.or(false, false), false)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const or: {
    /**
     * Combines two boolean using OR: `self || that`.
     *
     * **When to use**
     *
     * Use to accept when either boolean operand is `true`.
     *
     * **Example** (Combining booleans with OR)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.or(true, true), true)
     * assert.deepStrictEqual(Boolean.or(true, false), true)
     * assert.deepStrictEqual(Boolean.or(false, true), true)
     * assert.deepStrictEqual(Boolean.or(false, false), false)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two boolean using OR: `self || that`.
     *
     * **When to use**
     *
     * Use to accept when either boolean operand is `true`.
     *
     * **Example** (Combining booleans with OR)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.or(true, true), true)
     * assert.deepStrictEqual(Boolean.or(true, false), true)
     * assert.deepStrictEqual(Boolean.or(false, true), true)
     * assert.deepStrictEqual(Boolean.or(false, false), false)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Combines two booleans using NOR: `!(self || that)`.
 *
 * **When to use**
 *
 * Use to accept only when both boolean operands are `false`.
 *
 * **Example** (Combining booleans with NOR)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.nor(true, true), false)
 * assert.deepStrictEqual(Boolean.nor(true, false), false)
 * assert.deepStrictEqual(Boolean.nor(false, true), false)
 * assert.deepStrictEqual(Boolean.nor(false, false), true)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const nor: {
    /**
     * Combines two booleans using NOR: `!(self || that)`.
     *
     * **When to use**
     *
     * Use to accept only when both boolean operands are `false`.
     *
     * **Example** (Combining booleans with NOR)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.nor(true, true), false)
     * assert.deepStrictEqual(Boolean.nor(true, false), false)
     * assert.deepStrictEqual(Boolean.nor(false, true), false)
     * assert.deepStrictEqual(Boolean.nor(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two booleans using NOR: `!(self || that)`.
     *
     * **When to use**
     *
     * Use to accept only when both boolean operands are `false`.
     *
     * **Example** (Combining booleans with NOR)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.nor(true, true), false)
     * assert.deepStrictEqual(Boolean.nor(true, false), false)
     * assert.deepStrictEqual(Boolean.nor(false, true), false)
     * assert.deepStrictEqual(Boolean.nor(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Combines two booleans using XOR: `(!self && that) || (self && !that)`.
 *
 * **When to use**
 *
 * Use to accept when exactly one boolean operand is `true`.
 *
 * **Example** (Combining booleans with XOR)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.xor(true, true), false)
 * assert.deepStrictEqual(Boolean.xor(true, false), true)
 * assert.deepStrictEqual(Boolean.xor(false, true), true)
 * assert.deepStrictEqual(Boolean.xor(false, false), false)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const xor: {
    /**
     * Combines two booleans using XOR: `(!self && that) || (self && !that)`.
     *
     * **When to use**
     *
     * Use to accept when exactly one boolean operand is `true`.
     *
     * **Example** (Combining booleans with XOR)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.xor(true, true), false)
     * assert.deepStrictEqual(Boolean.xor(true, false), true)
     * assert.deepStrictEqual(Boolean.xor(false, true), true)
     * assert.deepStrictEqual(Boolean.xor(false, false), false)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two booleans using XOR: `(!self && that) || (self && !that)`.
     *
     * **When to use**
     *
     * Use to accept when exactly one boolean operand is `true`.
     *
     * **Example** (Combining booleans with XOR)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.xor(true, true), false)
     * assert.deepStrictEqual(Boolean.xor(true, false), true)
     * assert.deepStrictEqual(Boolean.xor(false, true), true)
     * assert.deepStrictEqual(Boolean.xor(false, false), false)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Combines two booleans using EQV (aka XNOR): `!xor(self, that)`.
 *
 * **When to use**
 *
 * Use to accept when both boolean operands have the same truth value.
 *
 * **Example** (Checking boolean equivalence)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.eqv(true, true), true)
 * assert.deepStrictEqual(Boolean.eqv(true, false), false)
 * assert.deepStrictEqual(Boolean.eqv(false, true), false)
 * assert.deepStrictEqual(Boolean.eqv(false, false), true)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const eqv: {
    /**
     * Combines two booleans using EQV (aka XNOR): `!xor(self, that)`.
     *
     * **When to use**
     *
     * Use to accept when both boolean operands have the same truth value.
     *
     * **Example** (Checking boolean equivalence)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.eqv(true, true), true)
     * assert.deepStrictEqual(Boolean.eqv(true, false), false)
     * assert.deepStrictEqual(Boolean.eqv(false, true), false)
     * assert.deepStrictEqual(Boolean.eqv(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two booleans using EQV (aka XNOR): `!xor(self, that)`.
     *
     * **When to use**
     *
     * Use to accept when both boolean operands have the same truth value.
     *
     * **Example** (Checking boolean equivalence)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.eqv(true, true), true)
     * assert.deepStrictEqual(Boolean.eqv(true, false), false)
     * assert.deepStrictEqual(Boolean.eqv(false, true), false)
     * assert.deepStrictEqual(Boolean.eqv(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Combines two booleans using an implication: `(!self || that)`.
 *
 * **When to use**
 *
 * Use to model logical implication between a condition and a consequence.
 *
 * **Example** (Checking boolean implication)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.implies(true, true), true)
 * assert.deepStrictEqual(Boolean.implies(true, false), false)
 * assert.deepStrictEqual(Boolean.implies(false, true), true)
 * assert.deepStrictEqual(Boolean.implies(false, false), true)
 * ```
 *
 * @category combinators
 * @since 2.0.0
 */
export declare const implies: {
    /**
     * Combines two booleans using an implication: `(!self || that)`.
     *
     * **When to use**
     *
     * Use to model logical implication between a condition and a consequence.
     *
     * **Example** (Checking boolean implication)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.implies(true, true), true)
     * assert.deepStrictEqual(Boolean.implies(true, false), false)
     * assert.deepStrictEqual(Boolean.implies(false, true), true)
     * assert.deepStrictEqual(Boolean.implies(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (that: boolean): (self: boolean) => boolean;
    /**
     * Combines two booleans using an implication: `(!self || that)`.
     *
     * **When to use**
     *
     * Use to model logical implication between a condition and a consequence.
     *
     * **Example** (Checking boolean implication)
     *
     * ```ts
     * import { Boolean } from "effect"
     * import * as assert from "node:assert"
     *
     * assert.deepStrictEqual(Boolean.implies(true, true), true)
     * assert.deepStrictEqual(Boolean.implies(true, false), false)
     * assert.deepStrictEqual(Boolean.implies(false, true), true)
     * assert.deepStrictEqual(Boolean.implies(false, false), true)
     * ```
     *
     * @category combinators
     * @since 2.0.0
     */
    (self: boolean, that: boolean): boolean;
};
/**
 * Checks whether every boolean in a collection is `true`.
 *
 * **When to use**
 *
 * Use to check that every boolean in an iterable is `true`.
 *
 * **Example** (Checking every boolean)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.every([true, true, true]), true)
 * assert.deepStrictEqual(Boolean.every([true, false, true]), false)
 * ```
 *
 * @see {@link some} for checking whether at least one value is `true`
 * @see {@link ReducerAnd} for reducing booleans with AND through a `Reducer`
 *
 * @category predicates
 * @since 2.0.0
 */
export declare const every: (collection: Iterable<boolean>) => boolean;
/**
 * Checks whether at least one boolean in a collection is `true`.
 *
 * **When to use**
 *
 * Use to check that at least one boolean in an iterable is `true`.
 *
 * **Example** (Checking some booleans)
 *
 * ```ts
 * import { Boolean } from "effect"
 * import * as assert from "node:assert"
 *
 * assert.deepStrictEqual(Boolean.some([true, false, true]), true)
 * assert.deepStrictEqual(Boolean.some([false, false, false]), false)
 * ```
 *
 * @see {@link every} for checking whether all values are `true`
 * @see {@link ReducerOr} for reducing booleans with OR through a `Reducer`
 *
 * @category predicates
 * @since 2.0.0
 */
export declare const some: (collection: Iterable<boolean>) => boolean;
/**
 * Reducer for combining `boolean`s using AND.
 *
 * **When to use**
 *
 * Use to require every accumulated boolean to be `true` through APIs that
 * consume a `Reducer`.
 *
 * **Details**
 *
 * The `initialValue` is `true`, so `combineAll([])` returns `true`.
 *
 * **Gotchas**
 *
 * `combineAll` uses the default left-to-right `Reducer.make` fold and does not
 * short-circuit on `false`.
 *
 * @see {@link ReducerOr} for reducing with OR semantics
 * @see {@link every} for checking an iterable directly
 *
 * @category math
 * @since 4.0.0
 */
export declare const ReducerAnd: Reducer.Reducer<boolean>;
/**
 * Reducer for combining `boolean`s using OR.
 *
 * **When to use**
 *
 * Use to reduce boolean values where the result should be `true` if any
 * combined value is `true`.
 *
 * **Details**
 *
 * The `initialValue` is `false`.
 *
 * @see {@link ReducerAnd} for reducing with AND semantics
 * @see {@link some} for checking an iterable directly
 *
 * @category math
 * @since 4.0.0
 */
export declare const ReducerOr: Reducer.Reducer<boolean>;
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