feat: offset constraints support for the grind tactic
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Co-authored-by: Kim Morrison <[email protected]>
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grind tactic (WIP)grind tactic
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) This PR implements support for offset constraints in the `grind` tactic. Several features are still missing, such as constraint propagation and support for offset equalities, but `grind` can already solve examples like the following: ```lean example (a b c : Nat) : a ≤ b → b + 2 ≤ c → a + 1 ≤ c := by grind example (a b c : Nat) : a ≤ b → b ≤ c → a ≤ c := by grind example (a b c : Nat) : a + 1 ≤ b → b + 1 ≤ c → a + 2 ≤ c := by grind example (a b c : Nat) : a + 1 ≤ b → b + 1 ≤ c → a + 1 ≤ c := by grind example (a b c : Nat) : a + 1 ≤ b → b ≤ c + 2 → a ≤ c + 1 := by grind example (a b c : Nat) : a + 2 ≤ b → b ≤ c + 2 → a ≤ c := by grind ``` --------- Co-authored-by: Kim Morrison <[email protected]>
JovanGerb
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Jan 21, 2025
) This PR implements support for offset constraints in the `grind` tactic. Several features are still missing, such as constraint propagation and support for offset equalities, but `grind` can already solve examples like the following: ```lean example (a b c : Nat) : a ≤ b → b + 2 ≤ c → a + 1 ≤ c := by grind example (a b c : Nat) : a ≤ b → b ≤ c → a ≤ c := by grind example (a b c : Nat) : a + 1 ≤ b → b + 1 ≤ c → a + 2 ≤ c := by grind example (a b c : Nat) : a + 1 ≤ b → b + 1 ≤ c → a + 1 ≤ c := by grind example (a b c : Nat) : a + 1 ≤ b → b ≤ c + 2 → a ≤ c + 1 := by grind example (a b c : Nat) : a + 2 ≤ b → b ≤ c + 2 → a ≤ c := by grind ``` --------- Co-authored-by: Kim Morrison <[email protected]>
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This PR implements support for offset constraints in the
grindtactic. Several features are still missing, such as constraint propagation and support for offset equalities, butgrindcan already solve examples like the following: