X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fsyntax%2Fteqx.ma;h=f44d4c438a43c77cf94fed157d0870088ec5722c;hp=ed581c5be2f804d0fd0bcfdda75871aeec35da23;hb=e23331eef5817eaa6c5e1c442d1d6bbb18650573;hpb=b118146b97959e6a6dde18fdd014b8e1e676a2d1 diff --git a/matita/matita/contribs/lambdadelta/static_2/syntax/teqx.ma b/matita/matita/contribs/lambdadelta/static_2/syntax/teqx.ma index ed581c5be..f44d4c438 100644 --- a/matita/matita/contribs/lambdadelta/static_2/syntax/teqx.ma +++ b/matita/matita/contribs/lambdadelta/static_2/syntax/teqx.ma @@ -17,9 +17,6 @@ include "static_2/syntax/teqg.ma". (* SORT-IRRELEVANT EQUIVALENCE ON TERMS *************************************) -definition sfull: relation2 nat nat ≝ - λs1,s2. ⊤. - definition teqx: relation term ≝ teqg sfull. @@ -29,10 +26,6 @@ interpretation (* Basic properties *********************************************************) -lemma sfull_dec: - ∀s1,s2. Decidable (sfull s1 s2). -/2 width=1 by or_introl/ qed. - lemma teqx_pair: ∀V1,V2. V1 ≅ V2 → ∀T1,T2. T1 ≅ T2 → ∀I. ②[I]V1.T1 ≅ ②[I]V2.T2.