0 Pucha{\l}a, Z. 2005 Proof of Grabiner's theorem on non-colliding particles Probability and Mathematical Statistics 25 129-132 Brownian motion Collision time Probability Theory Stochastic Processes A detail proof of Grabiner's theorem on the exact asymptotics of the time to collision for n independent Brownian motions is given. http://www.math.uni.wroc.pl/~pms/publications.php?nr=25.1