This symbol is defined in the core so it can be used as the name of an optional argument by multiple packages.

- ReesAlgebra -- Compute Rees algebras and their invariants

- reesAlgebra(...,Jacobian=>...) (missing documentation)
- "reesIdeal(...,Jacobian=>...)" -- see reesIdeal -- Compute the defining ideal of the Rees Algebra
- "specialFiber(...,Jacobian=>...)" -- see specialFiber -- Special fiber of a blowup
- "specialFiberIdeal(...,Jacobian=>...)" -- see specialFiberIdeal -- Special fiber of a blowup