Kata Library

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32 Kata Found

Beta

Multiplication by 0 in all Rings

Status:Testing & feedback needed

Estimated Rank:
7 kyu

Theorem Proving

Beta

Square root of 2 is irrational

Status:Testing & feedback needed

Estimated Rank:
4 kyu

Theorem Proving

Beta

Induction toolbox: Generalized m-induction

8donaldsebleung

Status:Ranking feedback needed

Estimated Rank:
6 kyu

Theorem Proving

Discrete Mathematics

Beta

Verified Irregular Chessboard Area

6donaldsebleung

Status:Ranking feedback needed

Estimated Rank:
6 kyu

Theorem Proving

6 kyu

Prove that the sum of a nilpotent element and a unit is a unit

21ChrisHughes24

Theorem Proving

6 kyu

If a^b + 1 is prime, then a is even

Theorem Proving

8 kyu

Fermat was wrong

79donaldsebleung

Theorem Proving

5 kyu

26donaldsebleung

Theorem Proving

6 kyu

0.999... = 1? Prove it!

18donaldsebleung

Theorem Proving

6 kyu

The integers and the rationals are not isomorphic as groups

Theorem Proving

6 kyu

Verified Horner's method

Theorem Proving

Functional Programming

4 kyu

A special set of matrices with unique representation

Theorem Proving

6 kyu

Drinker paradox

119yuxuanchiadm

Theorem Proving

6 kyu

Incidence Geometry #1

46donaldsebleung

Theorem Proving

6 kyu

Incidence Geometry #8

25donaldsebleung

Theorem Proving

6 kyu

Incidence Geometry #7

25donaldsebleung

Theorem Proving

5 kyu

Incidence Geometry #6

27donaldsebleung

Theorem Proving

6 kyu

Incidence Geometry #5

27donaldsebleung

Theorem Proving

6 kyu

Incidence Geometry #4

28donaldsebleung

Theorem Proving

6 kyu

Incidence Geometry #3

33donaldsebleung

Theorem Proving

7 kyu

Incidence Geometry #2

46donaldsebleung

Theorem Proving

4 kyu

Ltac practice: The tarai function

Theorem Proving

4 kyu

A special set of matrices with convertible representations

Theorem Proving

4 kyu

Factorial divisibility a.k.a. binomial coefficient

Theorem Proving

5 kyu

EM implies LPO, LPO implies LLPO

Theorem Proving

4 kyu

A special set of matrices closed under matmul and transpose

Theorem Proving

5 kyu

Nat in the mirror: "Not finite" implies "Infinite"

Theorem Proving

6 kyu

A+A=B+B so A=B? Prove it!

Theorem Proving

5 kyu

List concatenation is injective? Prove it!

65lwoo19991 Issue Reported

Theorem Proving

5 kyu

Coinduction Proof Principle

Theorem Proving

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