import type { GraderFn } from "./types.js";
/**
 * Conjunction: all graders must pass.
 * Score = minimum score. Does NOT short-circuit (all results needed for reporting).
 */
export declare function all(graders: readonly GraderFn[]): GraderFn;
/**
 * Disjunction: at least one grader must pass.
 * Score = maximum score. Does NOT short-circuit.
 */
export declare function any(graders: readonly GraderFn[]): GraderFn;
/**
 * Negation: inverts a grader's result.
 */
export declare function not(grader: GraderFn): GraderFn;
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