contrib/subtac/test/Mutind.v


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Program Fixpoint f (a : nat) : nat := 
  match a with
  | 0 => 0
  | S a' => g a a'
  end
with g (a b : nat) { struct b } : nat := 
  match b with
  | 0 => 0
  | S b' => f b'
  end.

Check f.
Check g.