Def True == 0  

is mentioned by

Def leaf_value(t) == Case(t) Case tree_leaf(l) => l Default => True	[leaf_value]
Def t_iterate(l;n;t) Def == Case(t) Def == Case x;y => Def == Casen(t_iterate(l;n;x),t_iterate(l;n;y)) Def == Case tree_leaf(x) => Def == Casel(x) Def == Default => True Def (recursive)	[t_iterate]

In prior sections: core bool 1

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