actualize
set-union
with
alink
by morphism
:set → alink-set;
:elem → alink;
∅ → ∅;
++ → ++;
# → #;
{ } → { };
∪ → ∪;
∩ → ∩;
\ → \;
-- → --;
∈ → ∈;
⊆ → ⊆;
a → alink;
b → alink0;
c → alink1;
s → ls;
s0 → ls0;
s1 → ls1;
s2 → ls2
end actualize