| foldsubterms/4 | The 
predicate foldsubterms/5 calls call(Goal4, SubTerm1, SubTerm2, StateIn, 
StateOut) for each subterm, including variables, in Term1. | 
| foldsubterms/5 | The 
predicate foldsubterms/5 calls call(Goal4, SubTerm1, SubTerm2, StateIn, 
StateOut) for each subterm, including variables, in Term1. | 
| mapargs/3 | Term1 
and Term2 have the same functor (name/arity) and for each matching pair 
of arguments call(Goal, A1, A2) is true. | 
| mapsubterms/3 | Recursively 
map sub terms of Term1 into subterms of Term2 for every pair for which 
call(Goal, ST1, ST2) succeeds. | 
| mapsubterms_var/3 | Recursively 
map sub terms of Term1 into subterms of Term2 for every pair for which 
call(Goal, ST1, ST2) succeeds. | 
| same_functor/2 | True 
when Term1 and Term2 are terms that have the same functor (Name/Arity). | 
| same_functor/3 | True 
when Term1 and Term2 are terms that have the same functor (Name/Arity). | 
| same_functor/4 | True 
when Term1 and Term2 are terms that have the same functor (Name/Arity). | 
| subsumes/2 | True 
if Generic is unified to Specific without changing Specific. | 
| subsumes_chk/2 | True 
if Generic can be made equivalent to Specific without changing Specific. | 
| term_factorized/3 | Is 
true when Skeleton is Term where all subterms that appear multiple times 
are replaced by a variable and Substitution is a list of Var=Value that 
provides the subterm at the location Var. | 
| term_size/2 | True 
if Size is the size in _cells_ occupied by Term on the global (term) 
stack. | 
| term_subsumer/3 | General 
is the most specific term that is a generalisation of Special1 and 
Special2. | 
| variant/2 | Same 
as SWI-Prolog = |Term1=@=Term2|=. |