methodic doubt

What Was The Purpose Of Descartes Methodic Doubt?

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What Was The Purpose Of Descartes Methodic Doubt? In the first half of the 17th century, the French Rationalist René Descartes used methodic doubt to reach certain knowledge of self-existence in the act of thinking, expressed in the indubitable proposition cogito, ergo sum (“I think, therefore I am”). What is the purpose of Descartes doubt?