%+ sub
%+ mul
3
3
4
the same nesting written tall.
follow the indentation inward to see the inner call.
glossary
%+ calls a gate that takes two arguments.
%+(add 2 3) is 5.
irregular forms:
(gate a b) is %+(gate a b)
sub subtracts the second atom from the first.
(sub 9 4) is 5.
mul multiplies two atoms.
(mul 3 4) is 12.