notation.ref

test_2 = {[10 := {[10 := 1]}; 20 := {[20 := 2]}]}
     : M (M nat)
test_3 =
{[10 := {[10 := 1]}; 20 := {[20 := 2]}; 30 := {[30 := 3]}]}
     : M (M nat)
test_4 =
{[10 := {[10 := 1]}; 20 := {[20 := 2]}; 30 := {[30 := 3]}; 40 := {[40 := 4]}]}
     : M (M nat)
test_op_2 =
{[10 := {[10 ^ 2 := 99]}; 10 + 1 := {[10 - 100 := 42 * 1337]}]}
     : M (M nat)
test_op_3 =
{[10 := {[20 - 2 := [11]; 1 := [22]]};
  20 := {[99 + length [1] := [1; 2; 3]]};
  4 := {[4 := [4]]};
  5 := {[5 := [5]]}]}
     : M (M (list nat))
test_op_4 =
{[10 := {[20 - 2 := [11];
          1 := [22];
          3 := [23];
          4 := [1; 2; 3; 4; 5; 6; 7; 8; 9]]};
  20 := {[99 + length [1] := [1; 2; 3]]};
  4 := {[4 := [4]]};
  5 := {[5 := [5]]}]}
     : M (M (list nat))
test_gmultiset_1 = {[+ 10 +]}
     : gmultiset nat
test_gmultiset_2 = {[+ 10; 11 +]}
     : gmultiset nat
test_gmultiset_3 = {[+ 10; 11; 2 - 2 +]}
     : gmultiset nat
test_gmultiset_4 =
{[+ {[+ 10 +]}; ∅; {[+ 2 - 2; 10 +]} +]}
     : gmultiset (gmultiset nat)