11 lines
155 B
Text
11 lines
155 B
Text
|
import algebra.group
|
||
|
|
||
|
variable {A : Type}
|
||
|
variable [s : group A]
|
||
|
include s
|
||
|
|
||
|
set_option blast.cc.heq true
|
||
|
|
||
|
example (a : A) : a * 1⁻¹ = a :=
|
||
|
by inst_simp
|