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单词 subcontrary
释义

Definition of subcontrary in English:

subcontrary

adjective sʌbˈkɒntrəriˌsəbˈkäntrərē
Logic dated
  • Denoting propositions which can both be true, but cannot both be false (e.g. some X are Y and some X are not Y).

    小反对关系的,下反对关系的

    Example sentencesExamples
    • Paradox seems to arise when conditional statements have subcontrary statements as antecedent and consequent.
    • The particular statements: I and O are subcontrary: ‘Some S are P’ and ‘Some S are not P’ can be true, but both cannot be false.
    • Similarly, ‘some unicorns have horns’ and ‘some unicorns do not have horns’ are both regarded as false, and so they are not subcontrary.’
    • In traditional logic the I and O statements are considered subcontrary to one another; in other words, they can both be true at the same time, but cannot both be false.
    • It follows that high or low probability are contrary to necessity of opposite polarity, and subcontrary to possibility of opposite polarity.
nounPlural subcontraries sʌbˈkɒntrəriˌsəbˈkäntrərē
Logic dated
  • A subcontrary proposition.

    Example sentencesExamples
    • Again, I and O propositions are subcontrary, but not contrary or contradictory.
    • Particular statements are subcontraries. ‘Some man is just’ and ‘some man is not just’ cannot be false together
    • Given that traditional logicians did think the subcontraries have ‘existential import’, how do we resolve the apparent contradiction?
    • The case of subcontraries will be revealed to include an unjustified presupposition in the section concerning the modern square of opposition.

Origin

Late 16th century: from late Latin subcontrarius, translation of Greek hupenantios.

Definition of subcontrary in US English:

subcontrary

adjectiveˌsəbˈkäntrərē
Logic dated
  • Denoting propositions which can both be true, but cannot both be false (e.g. some X are Y and some X are not Y).

    小反对关系的,下反对关系的

    Example sentencesExamples
    • It follows that high or low probability are contrary to necessity of opposite polarity, and subcontrary to possibility of opposite polarity.
    • Paradox seems to arise when conditional statements have subcontrary statements as antecedent and consequent.
    • Similarly, ‘some unicorns have horns’ and ‘some unicorns do not have horns’ are both regarded as false, and so they are not subcontrary.’
    • In traditional logic the I and O statements are considered subcontrary to one another; in other words, they can both be true at the same time, but cannot both be false.
    • The particular statements: I and O are subcontrary: ‘Some S are P’ and ‘Some S are not P’ can be true, but both cannot be false.
nounˌsəbˈkäntrərē
Logic dated
  • A subcontrary proposition.

    Example sentencesExamples
    • Again, I and O propositions are subcontrary, but not contrary or contradictory.
    • Given that traditional logicians did think the subcontraries have ‘existential import’, how do we resolve the apparent contradiction?
    • Particular statements are subcontraries. ‘Some man is just’ and ‘some man is not just’ cannot be false together
    • The case of subcontraries will be revealed to include an unjustified presupposition in the section concerning the modern square of opposition.

Origin

Late 16th century: from late Latin subcontrarius, translation of Greek hupenantios.

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更新时间:2025/2/7 9:54:33