Home Page
Site Map
Login/out
Message Board
Download(c) 2005-2025 XLOG Technologies AG
/**
* Warranty & Liability
* To the extent permitted by applicable law and unless explicitly
* otherwise agreed upon, XLOG Technologies AG makes no warranties
* regarding the provided information. XLOG Technologies AG assumes
* no liability that any problems might be solved with the information
* provided by XLOG Technologies AG.
*
* Rights & License
* All industrial property rights regarding the information - copyright
* and patent rights in particular - are the sole property of XLOG
* Technologies AG. If the company was not the originator of some
* excerpts, XLOG Technologies AG has at least obtained the right to
* reproduce, change and translate the information.
*
* Reproduction is restricted to the whole unaltered document. Reproduction
* of the information is only allowed for non-commercial uses. Selling,
* giving away or letting of the execution of the library is prohibited.
* The library can be distributed as part of your applications and libraries
* for execution provided this comment remains unchanged.
*
* Restrictions
* Only to be distributed with programs that add significant and primary
* functionality to the library. Not to be distributed with additional
* software intended to replace any components of the library.
*
* Trademarks
* Jekejeke is a registered trademark of XLOG Technologies AG.
*/
/**
* forall(A, B): [N208 8.10.4]
* The predicate succeeds when there is no success of A
* such that B fails. Otherwise, the predicate fails.
*/
% forall(+Goal, +Goal)
forall(A, B) :- \+ (A, \+ B).
/*******************************************************************/
/* Subsumption */
/*******************************************************************/
/**
* subsumes_term(X, Y): [ISO 8.2.4]
* The built-in succeeds if X subsumes Y without keeping the bindings.
*/
% subsumes_term(+Term, +Term)
subsumes_term(X, Y) :- sys_not_subsumes(X, Y), !, fail.
subsumes_term(_, _).
% sys_not_subsumes(+Term, +Term)
sys_not_subsumes(X, Y) :- subsumes(X, Y), !, fail.
sys_not_subsumes(_, _).
/*******************************************************************/
/* Foreign Predicates */
/*******************************************************************/
% numbervars(X, N, M):
% defined in foreign(fastlib)
% unify_with_occurs_check(S, T): [ISO 8.2.2]
% defined in foreign(fastlib)
% subsumes(X, Y): [N208 8.2.4]
% defined in foreign(fastlib)
% term_hash(X, H):
% defined in foreign(fastlib)
% unnumbervars(S, N, T):
% defined in foreign(fastlib)
% call(F, A1, .., An): [Corr.2 8.15.4.4]
% defined in foreign(fastlib)
:- ensure_loaded(foreign(fastlib)).