atomic formula/sentence

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atomic formula/sentence
Technically, an atomic formula is one with no logical constants . An atomic sentence is an atomic formula with no free variables . Intuitively, it is the kind of sentence on the basis of which one might start to construct logical complexity: a sentence consisting of a name and a monadic predicate (Bill snores) or a number of names and a relational predicate (Bill loves Mary).

Philosophy dictionary. . 2011.

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