I am sorry you don't understand what I am talking about. It seems pretty self-evident, but I guess not to all. We did not come up with logic out of the clear blue, betty boop, just as we did not "presuppose" a circle and then proceeded to establish universal geometrical "laws" that apply to circles no matter what universe they are in.
I believe you have the whole thing backwards. Rather man first discovered a circle, a physical shape, whether a rock, or a drawing, and then proceeded to see how many times can one fit a diameter around it and discovered a physical fact that there was always an amount left over, which the Greeks called a π.
That is the property of circles. Circle is a two-dimensional shape. It didn't exist before the material world was created.
It's enough to say that a circle does not exist w/o a physical instantiation of it, as in an object that contains a circle, or as an instance in some rational being's mind. Otherwise you must provide evidence for the claim that the material world was created and identify the creator.