X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fmatita%2Flibrary%2Fdemodulation_matita.ma;fp=helm%2Fmatita%2Flibrary%2Fdemodulation_matita.ma;h=0000000000000000000000000000000000000000;hb=83bbd662d887cc43d7d60cb607295dce503b3b7f;hp=0f4827e462239248826e77bcaba84fdf61f7c504;hpb=f7678e750c4a8551475d4538b824e328f523c564;p=helm.git diff --git a/helm/matita/library/demodulation_matita.ma b/helm/matita/library/demodulation_matita.ma deleted file mode 100644 index 0f4827e46..000000000 --- a/helm/matita/library/demodulation_matita.ma +++ /dev/null @@ -1,33 +0,0 @@ -(**************************************************************************) -(* ___ *) -(* ||M|| *) -(* ||A|| A project by Andrea Asperti *) -(* ||T|| *) -(* ||I|| Developers: *) -(* ||T|| The HELM team. *) -(* ||A|| http://helm.cs.unibo.it *) -(* \ / *) -(* \ / This file is distributed under the terms of the *) -(* v GNU General Public License Version 2 *) -(* *) -(**************************************************************************) - -set "baseuri" "cic:/matita/demodulation_matita/". - -include "nat/minus.ma". - -theorem p2: \forall x,y:nat. x+x = (S(S O))*x. -intros.demodulate.reflexivity. -qed. - -theorem p4: \forall x:nat. (x+(S O))*(x-(S O))=x*x - (S O). -intro. -apply (nat_case x) -[simplify.reflexivity -|intro.demodulate.reflexivity] -qed. - -theorem p5: \forall x,y:nat. (x+y)*(x+y) = x*x + (S(S O))*(x*y) + (y*y). -intros.demodulate.reflexivity. -qed. -