Commit 2024-02-28 17:59 449a4a9b
View on Github →feat: ℕ, ℤ and ℚ≥0 are star-ordered rings (#10633)
Also golf the existing instance for ℚ and rename Rat.num_nonneg_iff_zero_le to Rat.num_nonneg, Rat.num_pos_iff_pos to Rat.num_pos.
From LeanAPAP