15 lines
295 B
Text
15 lines
295 B
Text
import Lean
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new_frontend
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open Lean
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partial def mkTerm : Nat → Expr
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| 0 => mkApp (mkConst `a) (mkConst `b)
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| n+1 => mkApp (mkTerm n) (mkTerm n)
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def collectConsts (e : Expr) : List Name :=
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e.foldConsts [] List.cons
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def tst1 : IO Unit :=
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IO.println $ collectConsts (mkTerm 1000)
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#eval tst1
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