feat: heterogeneous (k : Nat) * (a : R) support in grind linarith
#8773
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algebraic-dev
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Jun 18, 2025
…eanprover#8773) This PR implements support for the heterogeneous `(k : Nat) * (a : R)` in ordered modules. Example: ```lean variable (R : Type u) [IntModule R] [LinearOrder R] [IntModule.IsOrdered R] example (x y z : R) (hx : x ≤ 3 * y) (h2 : y ≤ 2 * z) (h3 : x ≥ 6 * z) : x = 3 * y := by grind example (x y z : Int) (h1 : 2 * x < 3 * y) (h2 : -4 * x + 2 * z < 0) (h3 : x * y < 5) : ¬ 12*y - 4* z < 0 := by grind ```
wkrozowski
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Jun 24, 2025
…eanprover#8773) This PR implements support for the heterogeneous `(k : Nat) * (a : R)` in ordered modules. Example: ```lean variable (R : Type u) [IntModule R] [LinearOrder R] [IntModule.IsOrdered R] example (x y z : R) (hx : x ≤ 3 * y) (h2 : y ≤ 2 * z) (h3 : x ≥ 6 * z) : x = 3 * y := by grind example (x y z : Int) (h1 : 2 * x < 3 * y) (h2 : -4 * x + 2 * z < 0) (h3 : x * y < 5) : ¬ 12*y - 4* z < 0 := by grind ```
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This PR implements support for the heterogeneous
(k : Nat) * (a : R)in ordered modules. Example: