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PiBaseLean
.
Properties
.
P198
.
Defs
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Imports
Init
PiBaseLean.AdditionalDefs.Cardinal
Imported by
PiBase
.
HasCountableExtent
source
class
PiBase
.
HasCountableExtent
(
X
:
Type
u)
[
TopologicalSpace
X
]
:
Prop
extent_eq :
Extent
X
=
Cardinal.aleph0
Instances