Definition

subcontraries

noun
  1. in logic, two propositions that cannot both be false but can both be true
  2. Usage: logic; philosophy

Examples

  • In formal logic, subcontraries represent a specific relationship between propositions.
  • The statements 'some birds can fly' and 'some birds cannot fly' are subcontraries.
  • Philosophy students learn to distinguish between contraries and subcontraries.
  • Subcontraries differ from contradictories in that both can be true simultaneously.
  • The professor explained how subcontraries function in the square of opposition.
  • Understanding subcontraries is essential for mastering propositional logic.

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