lean4-htt/tests/lean/run/grind_funext.lean
Leonardo de Moura 4947215325
feat: improve funext support in grind (#7892)
This PR improves the support for `funext` in `grind`. We will push
another PR to minimize the number of case-splits later.
2025-04-10 01:57:27 +00:00

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example (f : (Nat → Nat) → Nat) : a = b → f (fun x => a + x) = f (fun x => b + x) := by
grind
example (f : (Nat → Nat) → Nat) : a = b → f (fun x => a + x) = f (fun x => b + x) := by
fail_if_success grind -funext
sorry