Kuratowski-Wagner theorem.
Chebyshev function $\vartheta (x)$.
Dissecting an obtuse triangle into acute triangles.
Equiarea and equiperimeter cut.
$e$ is irrational.
$\pi$ is irrational.
Simple sudoku backtrack algorithm.
Smallest pan-digital prime.
Equivalent statements to PNT.
Chebyshev theorem on primes.
Matrix inverses.
2025-02-23 some integrals relating to Bessel polynomials.
Picard theorem ODE
Fermat point.
20 degrees is not constructible.
Musing on constructing regular pentagon.
Constructible integral degree angles.
Compactness
2 - More consequences of the reals.
Extreme value theorem.
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Dissecting an obtuse triangle into acute triangles.
Equiarea and equiperimeter cut.
$e$ is irrational.
$\pi$ is irrational.
Simple sudoku backtrack algorithm.
Smallest pan-digital prime.
Equivalent statements to PNT.
Chebyshev theorem on primes.
Matrix inverses.
2025-02-23 some integrals relating to Bessel polynomials.
Picard theorem ODE
Fermat point.
20 degrees is not constructible.
Musing on constructing regular pentagon.
Constructible integral degree angles.
Compactness
2 - More consequences of the reals.
Extreme value theorem.