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sufficient condition
proposition 1 cannot be true while proposition 2 is false
eg. being a dog is sufficient for being an animal, can’t be a dog without being an animal
necessary condition
proposition 2 cannot be true while proposition 1 is false
eg. being a man is a necessary condition of being a bachelor, cannot be a bachelor without being a man
ability knowledge
knowing ‘how’ to do something, eg. ‘i know how to ride a bike’
acquaintance knowledge
knowing ‘of’ someone or some place, eg. ‘i know Oxford’
propositional knowledge
knowing ‘that’ a proposition is true or false, eg. ‘i know Paris is the capital of France’
proposition
a declarative statement that goes after ‘that’, eg. ‘I believe that mice are animals’
conditional
a proposition that takes the form of ‘if… then…’ - the conditional asserts that if the antecedent is true then the consequent is also true, eg. ‘if it is raining then the ground is wet’
antecedent
the proposition that forms the first part of a conditional statement, usually coming after ‘if’
consequent
the proposition that forms the second part of a conditional statement, usually coming after ‘then’
Note
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