Relations, Sequences and SummationsCovers strings, countable sets, cardinality, and the concept of countability, exploring the countability of various sets and Cantor diagonalization.
Sets and FunctionsIntroduces sets and functions, covering union, intersection, complement, functions terminology, and set operations analogies.
Sets and FunctionsIntroduces sets, functions, and their properties, including injective and surjective functions, composition, and inverse functions.