basic_pairs_to_basic_topologies.ma basic_pairs.ma basic_pairs_to_o-basic_pairs.ma basic_topologies.ma o-basic_pairs_to_o-basic_topologies.ma o-basic_pairs.ma notation.ma o-algebra.ma o-concrete_spaces.ma o-basic_pairs.ma o-saturations.ma basic_pairs.ma notation.ma relations.ma saturations.ma relations.ma o-saturations.ma o-algebra.ma o-algebra.ma categories.ma categories.ma cprop_connectives.ma formal_topologies.ma basic_topologies.ma o-formal_topologies.ma o-basic_topologies.ma saturations_to_o-saturations.ma o-saturations.ma relations_to_o-algebra.ma saturations.ma basic_topologies.ma relations.ma saturations.ma concrete_spaces.ma basic_pairs.ma subsets.ma categories.ma relations.ma subsets.ma r-o-basic_pairs.ma apply_functor.ma basic_pairs_to_o-basic_pairs.ma o-basic_pairs_to_o-basic_topologies.ma concrete_spaces_to_o-concrete_spaces.ma basic_pairs_to_o-basic_pairs.ma concrete_spaces.ma o-concrete_spaces.ma o-basic_topologies.ma o-algebra.ma o-saturations.ma 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 notation.ma cprop_connectives.ma logic/connectives.ma o-basic_pairs_to_o-basic_topologies.ma notation.ma o-basic_pairs.ma o-basic_topologies.ma relations_to_o-algebra.ma o-algebra.ma relations.ma logic/connectives.ma