Math 131 Lecture 06 013124 Cardinality

Winston Ou
Winston Ou
80
0
Publicado 2024-07-30
Brief overview of Euclidean spaces. Chapter II: Basic Point-Set Topology. Cardinality. Initial concepts: image of a mapping, onto functions, inverse image of a set (and of a point), one-to-one, cardinality, etc. Definitions: finite, countable, uncountable. Sequence. Theorem: every infinite subset of a countable set is countable. Basic set notation. Unions, intersections.
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