Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2023-03-27 18:59 de87d505

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feat(algebra/order/monoid/min_max): a₁ * b₁ ≤ a₂ * b₂ → a₁ ≤ a₂ ∨ b₁ ≤ b₂ (#18667) Complete the API.

Estimated changes

added theorem le_mul_of_le_left
added theorem le_mul_of_le_right
added theorem le_or_le_of_mul_le_mul
added theorem le_or_lt_of_mul_le_mul
added theorem lt_or_le_of_mul_le_mul
modified theorem lt_or_lt_of_mul_lt_mul
modified theorem mul_lt_mul_iff_of_le_of_le
added theorem gt_or_eq_of_le