Sets.

11 lessons103 min4 simulations

This chapter sets up the language the rest of mathematics is written in: what counts as a set, how to write one down, when two sets are equal or one sits inside another, and how new sets are made from old ones by union, intersection, difference and complement. Relations, functions, probability and every domain-and-range question in JEE are phrased in this notation.

Also called: set theory · Venn diagrams