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Nonstandard analysis 
Surreal number 
Superreal number 
Infinitesimal 
Law of continuity 
Levi-Civita field
Standard part function
Real closed field
Elementary Calculus: An Infinitesimal Approach
Leibniz's notation
Smooth infinitesimal analysis
John Wallis
Hyperinteger
Nonstandard calculus
Division by infinity
Division by zero Popular: 7 Reims 2024 Lists of horror films Val Thorens
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