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github.com
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leanprover
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lean4
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refs/heads/upstream/Array.mapIdx
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tests
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lean
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csimpAttr.lean.expected.out
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csimpAttr
.
lean
:
7
:
2
-
7
:
7
:
error
:
invalid
'csimp'
theorem
,
only constant replacement theorems
(
e
.
g
.,
`@f = @g`
)
are currently supported
.
[
init
]
def
f
(
x_1
:
obj
)
:
obj
:=
let
x_2
:
obj
:=
Nat
.
add x_1 x_1
;
let
x_3
:
obj
:=
Nat
.
add x_2 x_2
;
ret x_3