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leanprover
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refs/heads/upstream/Array.mapIdx
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etaStructIssue.lean.expected.out
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etaStructIssue
.
lean
:
20
:
2
-
20
:
5
:
error
:
type mismatch
rfl
has type
mkNat e x
₁
=
mkNat e x
₁
:
Prop
but
is
expected to have type
mkNat e x
₁
=
mkNat e
.
mk x
₂
:
Prop