Is this conditional (I think → I am) an entailment or a presupposition? Both? Neither? — TheMadFool
Put anther way, in trying to show the validity of "I think therefore I exist" it instead shows that it is circular, that "I think" already supposes that "I exist".
Descartes' argument is valid, but circular. — Banno
An entailment. — Banno
"I think" is the assumption; "I think" presupposes the thinker. — Banno
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