binrelTypeMismatch.lean:10:14-10:16: error: type mismatch
  ()
has type
  Unit
but is expected to have type
  Bool
binrelTypeMismatch.lean:15:21-15:22: error: type mismatch
  p
has type
  Prop
but is expected to have type
  Bool
Prop → sorry : Sort u_1
binrelTypeMismatch.lean:20:27-20:28: error: type mismatch
  p
has type
  Prop
but is expected to have type
  Bool
Prop → sorry : Sort u_1