Define [saturate].
Define [saturate].

It works again, now.  The proof should probably be sped up/better automated.
There might be a simpler way to do it, given that we were using [induction]
before and now we're not.  Replacing [forall_equiv__eq] with a simpler version
might also do it.

JasonGross/catdb,CategoricalData/catdb,CategoricalData/catdb,JasonGross/catdb