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PFR
.
Mathlib
.
Data
.
Set
.
Pointwise
.
SMul
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Imports
Init
Mathlib.Data.Set.Pointwise.SMul
Imported by
Set
.
singleton_add'
Set
.
singleton_mul'
Set
.
add_singleton'
Set
.
mul_singleton'
Set
.
vadd_sub_vadd_comm
Set
.
smul_div_smul_comm
source
@[simp]
theorem
Set
.
singleton_add'
{α :
Type
u_1}
[
Add
α
]
(a :
α
)
(s :
Set
α
)
:
{
a
}
+
s
=
a
+ᵥ
s
source
@[simp]
theorem
Set
.
singleton_mul'
{α :
Type
u_1}
[
Mul
α
]
(a :
α
)
(s :
Set
α
)
:
{
a
}
*
s
=
a
•
s
source
@[simp]
theorem
Set
.
add_singleton'
{α :
Type
u_1}
[
Add
α
]
(s :
Set
α
)
(a :
α
)
:
s
+
{
a
}
=
AddOpposite.op
a
+ᵥ
s
source
@[simp]
theorem
Set
.
mul_singleton'
{α :
Type
u_1}
[
Mul
α
]
(s :
Set
α
)
(a :
α
)
:
s
*
{
a
}
=
MulOpposite.op
a
•
s
source
theorem
Set
.
vadd_sub_vadd_comm
{α :
Type
u_1}
[
AddCommGroup
α
]
(a :
α
)
(s :
Set
α
)
(b :
α
)
(t :
Set
α
)
:
a
+ᵥ
s
-
(
b
+ᵥ
t
)
=
a
-
b
+ᵥ
(
s
-
t
)
source
theorem
Set
.
smul_div_smul_comm
{α :
Type
u_1}
[
CommGroup
α
]
(a :
α
)
(s :
Set
α
)
(b :
α
)
(t :
Set
α
)
:
a
•
s
/
b
•
t
=
(
a
/
b
)
•
(
s
/
t
)