Other philosopher such as Jin Yulun tried hard to confirm that inductive principle was a tautology proposition, but didn't give semantic interpretation for possible proposition.

罗素为解决休谟问题而提出归纳原则。金岳霖等人力图证明归纳原则是永真命题，但未对可能命题作出语义解释。

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Based on the substitute principle and profit maximization, neo-classical economics get the proposition that the relationship between profit rate and capital stock per capita is negatively monotony.

根据“替代原理”和利润最大化的假定，新古典学派得出命题：利润率与人均资本量之间存在着反向单调关系。

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