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PiBaseLean
.
Properties
.
P159
.
Defs
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Imports
Init
PiBaseLean.AdditionalDefs.Games
Imported by
PiBase
.
KMengerSpace
source
class
PiBase
.
KMengerSpace
(
X
:
Type
u)
[
TopologicalSpace
X
]
:
Prop
k_menger
{
ι
:
Type
u}
(
U
:
ℕ
→
ι
→
Set
X
)
:
(∀ (
n
:
ℕ
),
IsKCover''
(
U
n
)
)
→
∃ (
s
:
ℕ
→
Finset
ι
),
IsKCover'
{
x
:
Set
X
|
∃ (
n
:
ℕ
) (
i
:
ι
) (_ :
i
∈
s
n
),
U
n
i
=
x
}
Instances