Algebra
Structure for its own sake: groups, rings, fields and the maps between them.
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Lemma
Mathematics, written by the people still learning it.
A student journal & archive
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Nine fields. Everything Lemma publishes is filed under at least one of them; narrower subjects are tags.
Calculus
Limits, derivatives and integrals, and the analysis that makes them rigorous.
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Linear Algebra
Vectors, matrices and linear maps — the language most of applied mathematics is written in.
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Topology
What survives continuous deformation: openness, connectedness, holes.
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Arithmetic
Divisibility, congruence and the foundations of the number systems themselves.
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Statistics & Probability
Reasoning under uncertainty, from sample spaces to inference.
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Number Theory
The primes and everything that follows from taking them seriously.
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Computer Science
Algorithms, complexity and computation treated as mathematics.
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Numerical Analysis
Getting usable answers out of exact mathematics, and knowing the error you paid.
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Everything Lemma has published, in one place. Search the full text of titles and abstracts, or narrow by topic, author, format and review status — the filters combine, and the result is always a link you can share.
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