operator abs 1 || operator emptyset 0 operator intersect 2 operator pow 1 P() operator setminus 2 operator union 2 relation elem 0 relation eq 0 = relation neq 0 relation meets 0 relation ni 0 relation notmeets 0 ⋈̸ relation notelem 0 relation ordinal_prec 0 < relation ordinal_preceq 0 relation subset 0 relation subseteq 0 relation supseteq 0 operator inter 2 operator union 2 operator cons 2 {} operator pair 2 (,) operator times 2 × operator fst 1 fst() operator snd 1 snd() operator unions 1 operator inters 1 operator add 2 + operator apply 2 () operator between_rel 4 bet(,) operator bijections 2 Bij(,) operator bounded_metric 1 ¯ operator box_basis 2 BoxBasis(,) operator box_topology 2 BoxTop(,) operator circ 2 operator closedray_left 3 (,] operator closedray_right 3 [,) operator closeds 1 C operator closure 2 cl() operator closure_family 3 ClFam(,,) operator closures 2 Cl() operator component_relation 2 c, operator converse_relation 1 1 operator coord_diff_sequence 3 coordDiff(,) operator coord_diff_set 3 coordDiffSet(,) operator coord_product_sequence 3 coordProd(,) operator coord_scalar_sequence 3 coordScal(,) operator coord_square_sequence 2 coordSq() operator coord_square_sequence_mul 2 coordSqMul() operator coord_sum_sequence 3 coordSum(,) operator countable_complement_topology 1 τcc() operator discrete_metric 1 ddiscr() operator discrete_topology 1 τdiscr() operator dom 1 dom() operator downward_closure 2 () operator equiv_class 2 [] operator euclidean_metric 1 d2 operator exp 2 operator fiber_partition 2 Fib(,) operator finite_complement_topology 1 τfc() operator finite_intersections 1 π() operator frontier 2 fr() operator funs 2 Fun(,) operator id 1 id operator img 2 [] operator indexed_product 1 operator indiscrete_topology 1 τindiscr() operator induced_map 5 ¯ operator initial_segment_naturalsplus 1 seg+() operator inj 2 Inj(,) operator integers 0 operator interiors 2 Int() operator interior 2 int() operator interval_closed_open 2 [,) operator intervalclosed 2 [,] operator intervalclosed_rel 4 [,] operator intervalclosedopen_rel 4 [,) operator intervalopen 2 (,) operator intervalopen_rel 4 (,) operator intervalopenclosed_rel 4 (,] operator inv 1 1 operator iteration_set 2 Iter(,) operator k_basis_reals 0 BK operator k_set 0 K operator k_topology_reals 0 τK operator limit_points 3 Lim() operator lower_limit_basis_reals 0 Bll operator lower_limit_topology_reals 0 τll operator metric_ball 4 B(,) operator metric_ball_family 4 BallFam(,,,) operator metric_basis 2 B operator metric_distance_set 2 D() operator metric_topology 2 τ operator minus 2 operator naturals 0 operator naturalsPlus 0 + operator neg 1 operator neighbourhoods 2 N() operator neighbourhoods_set 2 NSET () operator omega_metric 0 dω operator omega_metric_set 2 Mω(,) operator one_point_compact_complements 3 K(,) operator one_point_compactification_topology 3 τ+(,) operator one_point_open_sets 3 O(,) operator open_rays 2 OpenRays(,) operator openray_left 3 (,) operator openray_right 3 (,) operator order_basis 2 OrdBasis(,) operator partition_map 2 π() operator path_relation 2 path, operator point_distance_set 3 D(,) operator preimg 2 1[] operator product_basis 4 ProdBasis(,;,) operator product_subbasis_indexed 3 ProdSub(,) operator product_subbasis_left 3 ProdSubL(;,) operator product_subbasis_right 3 ProdSubR(;,) operator product_subbasis_union_indexed 2 ProdSub(,) operator product_topology 4 ProdTop(,;,) operator product_topology_indexed 2 ProdTop(,) operator projection_first 2 π1(,) operator projection_map_indexed 2 π() operator projection_second 2 π2(,) operator quotient_topology 4 QuotTop(,,,) operator ran 1 ran() operator rationals 0 operator real_addition_operation 0 + operator real_division_operation 0 / operator real_inverse_operation 0 inv operator real_multiplication_operation 0 · operator real_order_relation 0 < operator real_order_topology 0 τ< operator real_subtraction_operation 0 operator reals 0 operator reals_power 1 operator rels 2 Rel(,) operator restrl 2 operator rmul 2 · operator sig6 2 / operator sig9 1 operator square_metric 1 d operator standard_basis_reals 0 Bstd operator standard_metric_r 0 dstd operator standard_topology_reals 0 τstd operator subspace_topology 2 operator suc 1 +1 operator surj 2 Surj(,) operator topology_generated_by_basis 2 τ() operator topology_generated_by_subbasis 2 τ() operator tuple_power 2 operator uniform_metric 1 du operator uniform_metric_set 3 Mu(,) operator uniform_topology 1 τu operator unit_rationals 0 unit operator unit_rationals_zero 0 unit0 operator urysohn_admissible 6 Adm(,,,,,) operator urysohn_good_pairs 5 GoodPairs(,,,,) operator urysohn_level_set 2 L() relation real_at_least 0 relation real_at_most 0 relation real_gt 0 > relation real_lt 0 < relation rless 0 < predicate finite_indexed_product_compact_property 1 FinProdCompact() predicate real_supremum_pred 2 =sup() predicate sum_finite_sequence_pred 2 =() predicate urysohn_good_pair 7 GoodPair(,,,,,,) structop carrier 1 structop opens 0 O structop opens 1 O