+- `nolambda:global:delete`: Deletes the global variable named $0 (string). Returns `:bool:true` if the variable existed previously, `:bool:false` else.
+
+### `nolambda:random`
+
+- `nolambda:random:random`: Returns a pseudorandom integer between $0 (integer) and $1 (integer). The upper bound is exclusive, the lower bound inclusive. Causes an error if the range is bigger than `nolambda:random:max`.
+- `nolambda:random:max`: Returns RAND_MAX, which is usually 32767.
+- `nolambda:random:seed`: Sets the random seed to $0 (integer) and returns `:nil:nil`.