import Mathlib.LinearAlgebra.CliffordAlgebra.Basic import Mathlib.LinearAlgebra.QuadraticForm.Basic noncomputable section namespace QFD.GA open CliffordAlgebra -- Test 1: Can we define the signature function? def signature33 : Fin 6 → ℝ | 0 => 1 | 1 => 1 | 2 => 1 | 3 => -1 | 4 => -1 | 5 => -1 #check signature33 end QFD.GA