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Limits and InfinityCovers the concept of limits and explores limits at infinity with illustrative examples.
Invariance of DomainDelves into the invariance of domain theorem, proving that a subset homeomorphic to an open subset is open itself, with implications for embeddings and homeomorphisms.
Limits of SequencesExplores the concept of limits of sequences and their convergence towards infinity or negative infinity.
Setting up arithmeticExplores defining arithmetic operations through counting, with insights on cardinal numbers, Cantor's work, and Sudoku.
Limits to InfinityExplores limits to infinity, including convergence, algebraic properties, and geometric progressions.