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# Brackets : Table of Contents

- Brackets -- Brackets, Grassmann-Cayley Algebra, and Projective Geometry
- Bracket
- BracketRing
- bracketRing -- Constructor for bracket rings
- gc -- Constructor for Grassmann-Cayley algebras.
- GCAlgebra
- GCExpression
- GCExpression ^ GCExpression -- Shuffle product in the Grassmann-Cayley Algebra
- GCExpression _ BracketRing -- Substituting top-degree Grassmann-Cayley elements into the bracket ring
- normalForm -- Represent a bracket polynomial in a normal form with respect to a Groebner basis
- RingElement _ AbstractGCRing -- Substituting ring elements into bracket rings and GC algebras
- toBracketPolynomial -- Represent an invariant polynomial as a polynomial in brackets