-- https://pdfs.semanticscholar.org/6f33/978012f794cc5fff60506db730e6a15185e7.pdf -- Introduction to Kleene Algebra Lecture 7, Equational Theory of Kleene Algebra
-- https://pdfs.semanticscholar.org/58e7/4d6c5c462887f7e1ebb9b092554397b89b3b.pdf -- Kleene Algebra Completeness
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l01-intro.pdf -- Course Roadmap
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l02-axioms.pdf -- Introduction to Kleene Algebra Lecture 2, Axioms of Kleene Algebra
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l03-alt.pdf -- Alternative Axiomatizations
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l04-eqthy.pdf -- Characterizing the Equational Theory
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l06-adj.pdf -- Relations Among Algebras
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l07-complete.pdf -- Equational Theory of Kleene Algebra
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l08-complete.pdf -- Finite Automata
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l09-complete.pdf -- Completeness
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l10-complexity.pdf -- Complexity of the Equational Theory
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l19-kat.pdf -- Kleene Algebra with Tests
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l20-katmodels.pdf -- Models of KAT
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l21-katcomplete.pdf -- Completeness of KAT
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l22-katHoare.pdf -- KAT and Hoare Logic
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l23-katcomplete.pdf -- Completeness of KAT for the Hoare Theory of Relational Models
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l24-complexity.pdf -- Complexity of Kleene Algebra with Tests
-- http://www.cs.cornell.edu/courses/cs786/2004sp/Lectures/l25-phlcomplexity.pdf -- Complexity of PHL
-- https://www.cs.cornell.edu/~kozen/Papers/ka.pdf -- A Completeness Theorem for Kleene Algebras and the Algebra of Regular Events
