He states that his ideas that he hasn’t say out loud yet exist just in his mind but those count as existing already. His example is the triangle. He states that in real life triangles don’t exist but material things with the shape of a triangle do exist. But he states that the triangle exists by itself because even if he tries to change its properties with his mind he can’t. Descartes points out the fact that the triangle was invented because of the things that have its shape. Because of that he says that there exist other figures. He says that each figure has its properties and because he knows them well he believes those are true. He compares geometry with math because both fields are abstract. He comes up with the idea that what make these
