lean4-htt/tests/lean/247.lean
Leonardo de Moura 36a4f337e9 fix: fixes #247
2021-04-15 12:33:45 -07:00

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Text

import Lean
namespace Lean.Meta
def f (e : Expr) : MetaM Bool := do
forallTelescope e fun xs b =>
match (← uinfoldDefinition? b) with
| none => pure true
| some _ => pure false
end Lean.Meta