library(lists)| append/3 | Concatenate lists |
| delete/3 | Delete all matching members from a list |
| flatten/2 | Transform nested list into flat list |
| intersection/3 | Set intersection |
| is_set/1 | Type check for a set |
| list_to_set/2 | Remove duplicates |
| member/2 | Element is member of a list |
| nextto/3 | Y follows X in List |
| nth0/3 | N-th element of a list (0-based) |
| nth1/3 | N-th element of a list (1-based) |
| numlist/3 | Create list of integers in interval |
| permutation/2 | Test/generate permutations of a list |
| reverse/2 | Inverse the order of the elements in a list |
| select/3 | Select element of a list |
| subset/2 | Check subset relation for unordered sets |
| subtract/3 | Delete elements that do not satisfy condition |
| sumlist/2 | Add all numbers in a list |
| union/3 | Union of two sets |
library(check)| check/0 | Program completeness and consistency |
| list_undefined/0 | List undefined predicates |
| list_autoload/0 | List predicates that require autoload |
| list_redefined/0 | List locally redefined predicates |
library(readutil)| read_line_to_codes/2 | Read line from a stream |
| read_line_to_codes/3 | Read line from a stream |
| read_stream_to_codes/2 | Read contents of stream |
| read_stream_to_codes/3 | Read contents of stream |
| read_file_to_codes/3 | Read contents of file |
| read_file_to_terms/3 | Read contents of file to Prolog terms |
library(netscape)| www_open_url/1 | Open a web-page in a browser |
library(registry)| registry_get_key/2 | Get principal value of key |
| registry_get_key/3 | Get associated value of key |
| registry_set_key/2 | Set principal value of key |
| registry_set_key/3 | Set associated value of key |
| registry_delete_key/1 | Remove a key |
| shell_register_file_type/4 | Register a file-type |
| shell_register_dde/6 | Register DDE action |
| shell_register_prolog/1 | Register Prolog |
library(url)| parse_url/2 | Analyse or construct a URL |
| parse_url/3 | Analyse or construct a relative URL |
| global_url/3 | Make relative URL global |
| http_location/2 | Analyse or construct location |
| www_form_encode/2 | Encode or decode form-data |