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[7980]. Removing the identities that follow from the others leaves 5 identities (Vampire); the variety page shows the shortest known basis.
Identifier sb-2b84b5b45aabb16b in the data of the bases-min seal.
Certified for
The identities
- x² ≈ x³
- x²yx ≈ xyx
- xyx ≈ xyx²
- xyxy ≈ yx²y
- xyzx ≈ xzyx
- xyxyz ≈ xy²xz
- xyxzy ≈ yx²zy