+notation.ma
+basic_topologies_to_o-basic_topologies.ma basic_topologies.ma o-basic_topologies.ma relations_to_o-algebra.ma
+basic_pairs_to_o-basic_pairs.ma basic_pairs.ma o-basic_pairs.ma relations_to_o-algebra.ma
+apply_functor.ma categories.ma
+cprop_connectives.ma logic/connectives.ma
+relations_to_o-algebra.ma o-algebra.ma relations.ma
+o-basic_pairs_to_o-basic_topologies.ma notation.ma o-basic_pairs.ma o-basic_topologies.ma
+logic/connectives.ma