Can you explain to me what rene descartes method of doubt is and his cogito agruement?

Question

can you explain to me what rene descartes method of doubt is and his cogito agruement?

Answer 1

Absolute skepticism

premise 1 One should doubt that anything can be known to include existence

premise 2 Things that do not doubt can not exist, I doubt that I exist

Conclusion

Because I am able to doubt that I exist I can know that I do exist because things that do not exist can not doubt that they exist.

Answer 2

descartes' methodic doubt is to doubt everything: your existence, go'd's existence, the existence of corporeal things...

with this process of doubting, you cannot deny that there is some faculty which does the doubting, the cogito. you doubt, therefore you think, you think, therefore, you are existing, and that existing thingis the cogito.