SemiBase

A certified basis of 15 identities

This list of identities is a basis, proved in Lean, of [6, 5647], which generates the variety V[5647]. Removing the identities that follow from the others leaves 12 identities (Vampire); the variety page shows the shortest known basis.

Identifier sb-da645c91addfa172 in the data of the bases-min seal.

Certified for

The identities

  1. x³ ≈ x⁴
  2. x²yx ≈ yx³
  3. xyx² ≈ yx³
  4. xyxy ≈ xy²x
  5. xyxy ≈ yx²y
  6. x²y³ ≈ xy³x
  7. x³y³ ≈ y³x³
  8. xyxzx ≈ yzx³
  9. xyxzy ≈ yx²zy
  10. xyzxy ≈ xyzyx
  11. xyzxy ≈ yxzxy
  12. xyzxz ≈ xyz²x
  13. xyxz³ ≈ xyz³x
  14. xyzxty ≈ yxzxty
  15. xyztxz ≈ xyztzx