命题理论是逻辑学的重要内容。

The theory of proposition is the important content of logic.

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因此，有必要从理论上对这一命题进一步进行反思和批判。

Therefore, it is necessary to carry on introspecting and criticizing this theory.

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生育安全命题具有理论和政策价值。

The issue of fertility safety has theory and policy value.

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建构命题化的理论是社会学研究科学化的必然要求。

Instituting the propositional theory is necessary for a scientific study of sociology.

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证实某理论、 论据、 命题等。

This theory contradicts with the evidence.

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证实某理论、论据、命题等。

Found a theory on firm evidence.

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第三章，考察了言语行为理论对命题的理解及其命题处理方案。

Chapter three discusses the approach based on Theory of Speech Act.

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“这些都是理论上的命题，”他说。

These are all theoretical propositions, "he said."

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“这些都是理论上的命题，”他说。

These are all theoretical propositions, "he said."

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