>...in the sense a mathematical truth holds good even when we are
>asleep and even if it does not exist in nature
is Gilles Deleuze, from his book Coldness and Cruelty. And yes, Sokal & Bricmont not only make fun of him, they devote a whole chapter (consisting mainly of long quotations followed by variants on "meaningless nonsense") to him & his sidekick Felix Guattari.
Doug