TautologyTime Limit: 1000MS Memory Limit: 65536K Total Submissions: 12135 Accepted: 4627 DescriptionWFF N PROOF is a logic game played with

回答：Contingency,名词,意思是概率,可能性 Tautology,名词,意思是永恒成立,比如命题恒成立

The subsequent tautology goes: Gnostics reputedly had systems; Hegel had a system; therefore Hegel is a Gnostic, and further, all system-builders are Gno