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github.com
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leanprover
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lean4
/
refs/heads/upstream/Array.mapIdx
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tests
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lean
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magical.lean.expected.out
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magical
.
lean
:
2
:
21
-
2
:
56
:
error
:
invalid projection
,
the expression
Exists
.
intro
1
(
Nat
.
le_refl
1
)
is
a proposition
and
has type
∃
x
,
x
≥
1
but the projected value
is
not
,
it has type
Nat
magical
.
lean
:
5
:
8
-
5
:
18
:
error
:
(
kernel
)
invalid projection
h
.
2