That at least is how Khûnajî understood Râzî's solution; he took it to amount to no more than an ampliation of the subject term to the possible. Unlike Râzî, Khûnajî understood the phrase “were it to exist as a J” to include reference to impossible Js, and modified or rejected the conversions 1, 2, 3 and 4.  Before turning to how Khûnajî used the essentialist reading, consider his assessment of Râzî's reading at the end of the chapter on conversion in Disclosure.