Kant: ‘The Principle Sine Qua Non..’

Here is Immanuel Kant 2,000 years later, from his ‘Critique Of Pure Reason’ [and whose own work was an extension of Aristotle]:

‘The proposition: ‘No subject can have a predicate that contradicts it’ is called the Principle of Contradiction..and we must hold [this Principle] to be the universal and fully sufficient principle of all analytic cognition..

and the fact that no cognition can be at variance with this Principle without nullifying itself, constitutes the Principle Sine Qua Non..’

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