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PiBaseLean
.
Properties
.
P114
.
Defs
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Imports
Init
Mathlib.SetTheory.Cardinal.Aleph
Imported by
PiBase
.
CardEqAlephOne
source
class
PiBase
.
CardEqAlephOne
(
X
:
Type
u_1)
:
Prop
card_eq :
Cardinal.mk
X
=
Cardinal.aleph
1
Instances