2014-08-12 00:35:25 +00:00
|
|
|
-- Copyright (c) 2014 Microsoft Corporation. All rights reserved.
|
|
|
|
-- Released under Apache 2.0 license as described in the file LICENSE.
|
|
|
|
-- Author: Jeremy Avigad
|
|
|
|
|
|
|
|
-- TODO: add notation for negation (in the sense of homotopy type theory)
|
|
|
|
|
|
|
|
-- Empty type
|
|
|
|
-- ----------
|
|
|
|
|
|
|
|
inductive empty : Type
|
|
|
|
|
2014-09-04 22:03:59 +00:00
|
|
|
theorem empty_elim (A : Type) (H : empty) : A := empty.rec (λe, A) H
|