module prelude import all Module.Basic /-! `import all` should import private information, privately. -/ /-- info: theorem t : f = 1 := sorry -/ #guard_msgs in #print t /-- error: type mismatch y has type Vector Unit 1 : Type but is expected to have type Vector Unit f : Type -/ #guard_msgs in theorem v (x : Vector Unit f) (y : Vector Unit 1) : x = y := sorry