30 lines
366 B
Text
30 lines
366 B
Text
namespace Foo
|
|
|
|
def x := 10
|
|
|
|
end Foo
|
|
|
|
#check Foo.x
|
|
|
|
open Foo
|
|
|
|
#check x
|
|
|
|
theorem ex1 : x = Foo.x := rfl
|
|
|
|
namespace Foo
|
|
|
|
def f x y := x + y + 1
|
|
|
|
scoped infix:70 "^^" => f
|
|
|
|
#check 1 ^^ 2
|
|
|
|
theorem ex1 : x ^^ y = f x y := rfl
|
|
|
|
end Foo
|
|
|
|
#check 1 ^^ 2 -- works because we have an `open Foo` above
|
|
|
|
theorem ex2 : x ^^ y = f x y := rfl
|
|
theorem ex3 : x ^^ y = Foo.f x y := rfl
|