I HAVE read the passage referred to, but for many reasons cannot admit that the argument is conclusive. In the first place, the quotation from Aristotle's “Ethics” has no authority whatever; it has no ...

ON p. 409 your reviewer states that “Euclid says nothing about the extreme points of the line” in his definition of a straight line, but regards “all the points on it.” ...

Learn the essential definitions of the parts of a circle. A secant line to a circle is a line that crosses exactly two points ...