Documentation
PiBaseLean
.
Properties
.
P242
.
Defs
Search
return to top
source
Imports
Init
Mathlib.Topology.Homotopy.HomotopyGroup
Imported by
PiBase
.
WeaklyContractibleSpace
source
class
PiBase
.
WeaklyContractibleSpace
(
X
:
Type
u)
[
TopologicalSpace
X
]
:
Prop
nonempty :
Nonempty
X
homotopically_trivial
(
x
:
X
)
(
N
:
Type
)
:
Finite
N
→
Subsingleton
(
HomotopyGroup
N
X
x
)
Instances