Euclid Quote

Q.E.D. [Quod erat demonstrandum: Which was to be proved.]


Elements, bk. I, proposition 5

Picture Quote 1

Q.E.D. [Quod erat demonstrandum: Which was to be proved.]

Picture Quote 2

Q.E.D. [Quod erat demonstrandum: Which was to be proved.]

Picture Quote 3

Q.E.D. [Quod erat demonstrandum: Which was to be proved.]

Picture Quote 4

Q.E.D. [Quod erat demonstrandum: Which was to be proved.]