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.
Order
.
LiminfLimsup
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Imports
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Mathlib.Order.LiminfLimsup
Imported by
Filter
.
iSup_liminf_le_liminf_iSup
source
theorem
Filter
.
iSup_liminf_le_liminf_iSup
{
α
:
Type
u_1}
{
β
:
Type
u_2}
{
ι
:
Sort
u_3}
[
CompleteLattice
α
]
{
f
:
Filter
β
}
{
u
:
ι
→
β
→
α
}
:
⨆ (
i
:
ι
),
liminf
(
u
i
)
f
≤
liminf
(fun (
b
:
β
) =>
⨆ (
i
:
ι
),
u
i
b
)
f