Badious philosophy is predicated on Set Theory, in its incarnation as the materialist set theory ZFC. He calls mathematics the very site of ontology.
Nietszche famously declared the death of God (in Europe). Thus Deicide. And the loss of the transcendent, and the return of the material, as exhibited in Sartres Existentialism. Being faced with Nothing.
Derrida has remarked that the shadow of God haunts European philosophy. The escaped centre. The transcendent centre that is not there.
Badiou appears to want to anchor the centre on Platos Theory of Forms as interpreted by the science and art of form mathematics - Platonism - Whiteheads third Kingdom.
This is anchoring the centre transcendentally - not in the theological sense - but in the sense that it escapes the world.
Is it fair to say that Badiou is returning Philosophy to a transcendental centre?