Usage History of 'propositional'

The following chart shows how frequently 'propositional' appeared in printed materials over time. For example, the word 'propositional' occurred 4 times in books in 1729 and 50,547 times in 2008. From 1729 to 2008, the word 'propositional' was used a total of 1,346,785 times in books scanned by Google. See Reference: Google Ngram project.

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