/* 0.26.0-alpha2 */
import { BoxedExpression } from '../public';
/** An interval is a continuous set of real numbers */
export type Interval = {
    start: number;
    openStart: boolean;
    end: number;
    openEnd: boolean;
};
export declare function interval(expr: BoxedExpression): Interval | undefined;
export declare function intervalContains(int: Interval, val: number): boolean;
/** Return true if int1 is a subset of int2 */
export declare function intervalSubset(int1: Interval, int2: Interval): boolean;