<P> A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon . For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it . Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories . Even though the words "hypothesis" and "theory" are often used synonymously, a scientific hypothesis is not the same as a scientific theory . A working hypothesis is a provisionally accepted hypothesis proposed for further research . </P> <P> A different meaning of the term hypothesis is used in formal logic, to denote the antecedent of a proposition; thus in the proposition "If P, then Q", P denotes the hypothesis (or antecedent); Q can be called a consequent . P is the assumption in a (possibly counterfactual) What If question . </P> <P> The adjective hypothetical, meaning "having the nature of a hypothesis", or "being assumed to exist as an immediate consequence of a hypothesis", can refer to any of these meanings of the term "hypothesis". </P> <P> In its ancient usage, hypothesis referred to a summary of the plot of a classical drama . The English word hypothesis comes from the ancient Greek ὑπόθεσις word hupothesis, meaning "to put under" or "to suppose". </P>

What is the mean of hypothesis in hindi