You know of course that a mathematical line, a line of thickness nil, has no real existence. They taught you that? Neither has a mathematical plane. These things are mere abstractions.


In: Robert M. Hutchins and Mortimer J. Adler (eds.), The Great Ideas Today, 1971


You know of course that a mathematical line, a line of thickness nil, has no real existence. They taught you that? Neither has a mathematical plane....

You know of course that a mathematical line, a line of thickness nil, has no real existence. They taught you that? Neither has a mathematical plane....

You know of course that a mathematical line, a line of thickness nil, has no real existence. They taught you that? Neither has a mathematical plane....

You know of course that a mathematical line, a line of thickness nil, has no real existence. They taught you that? Neither has a mathematical plane....