lean4-htt/tests/lean/run/declareConfigElabBug.lean
2023-08-16 10:14:23 -07:00

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Text

set_option trace.Elab true
theorem ex (h : a = b) : (fun x => x) a = b := by
simp (config := { beta := false, failIfUnchanged := false })
trace_state
simp (config := { beta := true }) [h]