Mathlib Changelog
v4
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Theorem
discrim_le_zero_of_nonpos
Modification history
2024-10-04 08:21
Mathlib/Algebra/QuadraticDiscriminant.lean
feat: the cosine of `π / 5` is `(1 + √5) / 4` (#17393)
Modified
discrim_le_zero_of_nonpos
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2023-03-18 10:25
Mathlib/Algebra/QuadraticDiscriminant.lean
feat: port Algebra.QuadraticDiscriminant (#2964)
Added
discrim_le_zero_of_nonpos
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