[cratermoon]

CS is definitely applied mathematics. Whether or not all of the maths that Dijkstra thought were essential to programming are much use in the day-to-day business of programming is debatable. His curmudgeonly view of our field, from the linked paper:

'As economics is known as "The Miserable Science", software engineering should be known as "The Doomed Discipline", doomed because it cannot even approach its goal since its goal is self-contradictory'