helm/matita/tests/discriminate.ma

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   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
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  14
  15 set "baseuri" "cic:/matita/tests/discriminate".
  16 include "coq.ma".
  17 alias id "not" = "cic:/Coq/Init/Logic/not.con".
  18 alias num (instance 0) = "natural number".
  19 alias symbol "eq" (instance 0) = "Coq's leibnitz's equality".
  20
  21
  22 theorem stupid:
  23   1 = 0 \to (\forall p:Prop. p \to not p).
  24   intros.
  25   discriminate H.
  26   qed.
  27