PIGEONHOLE 1

Introduction to Pigeonhole Principle and solving a number theory problems an application, by
vasileios bakas for GCSE, OCR, GRE, A Level, Degree exams, London tutors, mathematics specialists, physics, economics, Cambridge, Oxford, Edinburgh Universities, Analysis, Algebra, Differential equations, differential geometry, applied maths, Statistics, Probability, Number theory, combinatorics, Financial maths, Microeconomics, Macroeconomics, Mechanics, Geometry, Logic, Real and Complex Analysis, mathematics competitions, putnam, IMO, game theory, topology, analytic geometry, Group theory, discrete maths,difficult maths problems