Necessary and sufficient conditions
What Necessary and sufficient conditions means in Philosophy A-Level, as defined for AQA.
Definitions of Necessary and sufficient conditions
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Reference: AQA
Each condition is individually necessary, so removing any one means there is no knowledge, and together the three are jointly sufficient.
A condition is necessary if nothing can be the thing without it, and sufficient if meeting it guarantees being the thing.
Topics that use Necessary and sufficient conditions
- What is knowledge? (AQA A-Level)
Related terms
- Ability knowledge
- Acquaintance knowledge
- Counterexamples
- Definition of knowledge
- Epistemic virtue
- False lemmas and inferential routes
- Propositional knowledge
- Reliabilism as an externalist condition
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