Can you prove the following assertions using only Euclids postulates and common notions? Explain your answer. (a) Every line has at least two points lying on it. (b) For every line there is at least one point that does not lie on the line. (c) For every pair of points A Z B, there is only one line that passes through A and B. 8. Find the first of Euclids proofs in which he makes use of his Fifth Postulate.