A certified basis of 7 identities
This list of identities is a basis, proved in Lean, of 2 semigroups of order six, all of which generate the variety V[9639]. Removing the identities that follow from the others leaves 3 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-42608cb92fc2ecc4 in the data of the bases-min seal.
Certified for
The identities
- x³ ≈ x⁴
- x²y ≈ yxy
- x³y ≈ x²y
- x²y ≈ x²y²
- xy² ≈ xy³
- xy²z ≈ xyz
- x²yz ≈ xyxz