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    1. The first is about prepositional classification. In general logic, proposition consists of two categories, the simple proposition and the compound proposition.
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    2. A proposition on which another proposition depends; the antecedent of a conditional proposition.
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    3. proposition system of expressing scientific knowledge����atomic proposition, molecularproposition, and generalized proposition;
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    4. A proposition derived by negating and permuting the terms of another, equivalent proposition; for example, All not-Y is not-X is the contrapositive of All X is Y.
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    5. A proposition derived by negating and permuting the terms of another, equivalent proposition; for example, All not-Y is not-X is the contrapositive of All X is Y.
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    particular proposition
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    opinion proposition protest affirmation allegation aver claim contestation
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    contradictory proposition
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    ethically neutral proposition
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    inferring proposition
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