Mathlib v3 is deprecated. Go to Mathlib v4

Theorem cubic.coeff_three

Modification history

2022-11-24 10:55
src/algebra/cubic_discriminant.lean
feat(algebra/cubic_discriminant): add eq_zero and ne_zero lemmas (#17627) …
Deleted cubic.coeff_threeView on Github →
2022-02-05 19:40
src/algebra/cubic_discriminant.lean
feat(algebra/cubic_discriminant): basics of cubic polynomials and their discriminants (#11483)
Added cubic.coeff_threeView on Github →