- <para>Declares <command>u</command> as an implicit coercion
- from the type of its last argument (source)
- to its codomain (target). Every time a term <command>x</command>
+ <para>Declares <command>u</command> as an implicit coercion.
+ If the type of <command>u</command> is
+ <command>∀x1:T1. … ∀x(n-1):T(n-1).Tn</command> the coercion target is
+ <command>T(n - ariety)</command> while its source is
+ <command>T(n - ariety - saturation - 1)</command>.
+ Every time a term <command>x</command>