actualize
set-union
with
path
by morphism
:set → pathset;
:elem → path;
∅ → ∅;
++ → ++;
# → #;
{ } → { };
∪ → ∪;
∩ → ∩;
\ → \;
-- → --;
∈ → ∈;
⊆ → ⊆;
s → ps;
s0 → ps0;
s1 → ps1;
s2 → ps2;
a → p;
b → q;
c → p0
end actualize