RATCHET In nautical: major mast of the bow pole in boats that have more than one stick. Also major verga of the bow mast. And also, God bless me, the candle of the main stick. In mechanics: tab that . it allows forward but prevents recoil, typically the wheels of watches and other machines whose studs or ratchets prevent the recoil of the sprockets. In sports: Basque pelota modality and the court of the same. In mathematics and computer science: logical symbol consisting of a T lying down with the vertical line on the left. In ASCII it is obtained with the vertical bar ( | ) and with the hyphen ( - ) , P |- Q , which is understood in 3 modes : -From P we know Q-P causes Q , i . and. Q is a consequence of P-Q is demonstrable from P
