Premise
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A premise is a proposition offered to support a conclusion. Premises are true or false statements that serve as the starting points of arguments by presenting reasons to justify or refute standpoints.
Aristotle developed syllogistic logic and distinguished between major and minor premises.
Inductive reasoning is a form of generalization, such as concluding that all ravens are black based on the premise that all ravens one has observed are black.
Euclid showed how five fundamental premises can serve as the basis of Euclidean geometry.
Proposition
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Propositions are the meanings of declarative sentences, objects of beliefs, and bearers of truth values. They explain how different sentences, such as the English "Snow is white" and the German "Schne
According to Bertrand Russell, propositions are structured entities, composed of individuals and concepts.
Gottlob Frege argued that propositions are abstract objects, existing independently of mental and linguistic activities.
William of Ockham understood propositions as psychological representations formulated in a mental language.
John Locke saw mental propositions as the primary truth-bearers and the meanings of verbal propositions.