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17242 | 'Petitio principii' is reusing the idea to be defined, in disguised words [Hobbes] |
Full Idea: 'Petitio principii' is when the conclusion to be proved is disguised in other words, and put for the definition or principle from whence it is to be demonstrated. | |
From: Thomas Hobbes (De Corpore (Elements, First Section) [1655], 1.6.18) |