The Heap (The Bald Man, The Sorites, Little-by-little Arguments)

10,000 grains suitably arranged make a heap. But, at no point can you convert a collection of grains that is a heap into one that is not, simply by removing a single grain. So it follows that a single grain makes a heap. For if we keep removing grains over and over again, say 9,999 times, at no point does it cease to be a heap. Yet we obviously know that a single grain is not a heap.