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When two names are joined together into a consequence, or affirmation, as thus, A man is a living creature; or thus, If he be a man, he is a living creature; if the latter name living creature signify all that the former name man signifieth, then the affirmation, or consequence, is true; otherwise false. For true and false are attributes of speech, not of things. And where speech is not, there is neither truth nor falsehood. Error there may be, as when we expect that which shall not be, or suspect what has not been; but in neither case can a man be charged with untruth.
Hobbes, Lev IV 11
Falsehood to be distinguished from nonsense.
But when we reason in words of general signification, and fall upon a general inference which is false; though it be commonly called error, it is indeed an absurdity, or senseless speech.
Hobbes, Lev V 5