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Mathlib
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Algebra
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FreeAbelianGroup
.
UniqueSums
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Imports
Init
Mathlib.Algebra.FreeAbelianGroup.Finsupp
Mathlib.Algebra.Group.UniqueProds.Basic
Imported by
instTwoUniqueSumsFreeAbelianGroup
Free abelian groups have unique sums
#
source
instance
instTwoUniqueSumsFreeAbelianGroup
{
σ
:
Type
u_1}
:
TwoUniqueSums
(
FreeAbelianGroup
σ
)