9 lines
157 B
Text
9 lines
157 B
Text
import logic.eq
|
|
open tactic
|
|
|
|
theorem foo (A : Type) (a b c : A) (Hab : a = b) (Hbc : b = c) : a = c :=
|
|
begin
|
|
apply eq.trans,
|
|
apply Hab,
|
|
apply Hbc,
|
|
end
|