To provide an implication determining device, an implication determining method, and an implication determining program capable of improving implication determination performance. A new fact determination means 81 determines whether a given hypothesis is a new fact that indicates a first revealed fact in a hypothesis implied sentence that is a sentence implying the given hypothesis based on a specific expression written in the hypothesis implied sentence. An implication determination means 82 determines whether the given hypothesis is implied in a sentence to be determined that is a sentence to be determined whether the hypothesis is included.
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