From 2d7053c212c790d528e82ba37c3e927070de7ae5 Mon Sep 17 00:00:00 2001 From: Claudio Sacerdoti Coen Date: Fri, 26 Dec 2008 17:56:15 +0000 Subject: [PATCH] O-Basic Topologies do form a category. --- .../formal_topology/overlap/o-basic_topologies.ma | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma b/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma index a2ed2fee0..c0fb6c6a7 100644 --- a/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma +++ b/helm/software/matita/contribs/formal_topology/overlap/o-basic_topologies.ma @@ -157,11 +157,10 @@ definition BTop: category1. apply rule (#‡ASSOC1\sup -1); | intros; simplify; change with ((a⎻* ∘ (id1 ? o1)⎻* ) ∘ A o1 = a⎻* ∘ A o1); - apply rule (†((id_neutral_right1 ????)‡#)); - apply refl1*) - | intros; simplify; intro; simplify; - apply (.= †((id_neutral_left1 ????)‡#)); - apply refl1] + apply (#‡(id_neutral_right1 : ?)); + | intros; simplify; + change with (((id1 ? o2)⎻* ∘ a⎻* ) ∘ A o1 = a⎻* ∘ A o1); + apply (#‡(id_neutral_left1 : ?));] qed. (* -- 2.39.2