package prolog.ast.logic

import prolog.logic.Substituted

interface Provable {
    /**
     * Proves the current [Provable] instance.
     *
     * @return a sequence of [Substituted] instances representing the results of the proof.
     * If the proof fails, an empty sequence is returned.
     */
    fun prove(subs: Substituted): Sequence<Substituted>
}